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Finding the Fourth Proportional to 96.55, 133.15 and 86.29

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Solution

The fourth proportional to 96.55, 133.15 and 86.29 is: 119.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.55 : 133.15 = 86.29 : x
  2. Step 2: Convert to fraction form
    96.55/133.15 = 86.29/x
  3. Step 3: Cross multiply
    96.55x = 133.15 × 86.29
  4. Step 4: Simplify right side
    96.55x = 11,489.08
  5. Step 5: Solve for x
    x = 11,489.08/96.55
  6. Step 6: Final answer
    x = 119.00

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