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  <xs:element id="prth_DebtInstrumentCovenantMaximumDefaultRatioTwo" abstract="false" name="DebtInstrumentCovenantMaximumDefaultRatioTwo" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="prth_DebtInstrumentCovenantMinimumExcessSpreadRatio" abstract="false" name="DebtInstrumentCovenantMinimumExcessSpreadRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="prth_EquityIncentiveUnitsMember" abstract="true" name="EquityIncentiveUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="prth_LiabilityClassifiedCompensationExpenseMember" abstract="true" name="LiabilityClassifiedCompensationExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="prth_A2018EquityIncentivePlanMember" abstract="true" name="A2018EquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="prth_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServiceHoursPerWeek" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServiceHoursPerWeek" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="prth_NumberOfSubsidiaries" abstract="false" name="NumberOfSubsidiaries" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="prth_CapitalCommitmentsMember" abstract="true" name="CapitalCommitmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="prth_PurchaseCommitmentMaximumContractualTerm" abstract="false" name="PurchaseCommitmentMaximumContractualTerm" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="prth_ContingentConsiderationLiability" abstract="false" name="ContingentConsiderationLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="prth_ContingentConsiderationMember" abstract="true" name="ContingentConsiderationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="prth_DeferredConsiderationMember" abstract="true" name="DeferredConsiderationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="prth_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityAccretion" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityAccretion" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="prth_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisForeignCurrencyTranslationAdjustment" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisForeignCurrencyTranslationAdjustment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="prth_LongTermIncentiveAwardLiabilityFairValueDisclosure" abstract="false" name="LongTermIncentiveAwardLiabilityFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="prth_LongTermIncentiveAwardLiabilityFairValueDisclosureCurrent" abstract="false" name="LongTermIncentiveAwardLiabilityFairValueDisclosureCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="prth_LongTermIncentiveAwardLiabilityFairValueDisclosureNoncurrent" abstract="false" name="LongTermIncentiveAwardLiabilityFairValueDisclosureNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="prth_AdjustedEBITDA" abstract="false" name="AdjustedEBITDA" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="prth_CorporateReconcilingItemsAndEliminationsMember" abstract="true" name="CorporateReconcilingItemsAndEliminationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="prth_ShareBasedPaymentArrangementNoncashExpenseAdjusted" abstract="false" name="ShareBasedPaymentArrangementNoncashExpenseAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="prth_LiabilityClassifiedRestrictedStockUnitsMember" abstract="true" name="LiabilityClassifiedRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
