If I understand your notation correctly, we can say
x = smaller number; then x + 31/3= larger number
So 3(x + x + 31/3) = 133
expanding, 3x + 3x + 10 = 133
6x = 123
x = 20.5 the smaller number
x + 3.33 = 23.83 the larger number
Proof: (20.5 x 3) + (23.83 x 3) = 61.5 + 71.49 = 132.99