The question is:- Four given pulls and thrusts act on a ring. Find their equilibrant. The pulls and thrusts are as follows:

N = 58 - thrust

M = 105 - pull

L = 40 - thrust

K = 72 - pull

Angles are as follows:

NM - 73 deg

NL - 149 deg

NK - 194 deg

The methodology I have used is calculate the equilibrium for the pulls and thrusts separately. Then subtract the thrusts from the pulls. The answer I get is 60.36, however the answer given is 88.5. Where have I gone wrong?