The width would be 81 feet.
To find this answer, you could use the expression w = P/2 - l (or l = P/2 - w if you're finding the length)
w = width (93 feet)
and
P = perimeter (348 feet)
Then you divide the perimeter by 2:
348/2 =
174
Lastly you subtract 93 from 174:
174 - 93 =
81
Then you get your answer :D
I hoped this helped! :)