Since 1 Pakistani Rupee is equal to 1.148633150325132 Sri Lankan Rupees, we could say that n Pakistani Rupees are equal to 1.148633150325132 times n Sri Lankan Rupees. In other words, we could use the following formula:
Sri Lankan Rupees = Pakistani Rupees x 1.148633150325132
For example, let's say that we want to convert 2.0 Pakistani Rupees to Sri Lankan Rupees. Then, we just replace Pakistani Rupees in the abovementioned formula with 2.0:
Sri Lankan Rupees = 2.0 x 1.148633150325132
That is, 2.0 Pakistani Rupees are equal to 2.297266300650264 Sri Lankan Rupees.