Finding the Fourth Proportional to 100.49, 149.76 and 100.35

Step by Step Solution

1. Step 1: Write the proportion equation
   100.49 : 149.76 = 100.35 : x
2. Step 2: Convert to fraction form
   100.49/149.76 = 100.35/x
3. Step 3: Cross multiply
   100.49x = 149.76 × 100.35
4. Step 4: Simplify right side
   100.49x = 15,028.42
5. Step 5: Solve for x
   x = 15,028.42/100.49
6. Step 6: Final answer
   x = 149.56