According to the given data we have the following:
let x=length of this segment NP
length PQ=37.5
length NQ=180.1
Therefore, if length NQ=180.1, hence to calculate the length of segment NP we would make the following calculation:
If NP+PQ=NQ
Hence, NP+37.5=180.1
NP=180.1-37.5
NP=142.6