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Finding the Fourth Proportional to 169.55, 233.97 and 91.92

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Solution

The fourth proportional to 169.55, 233.97 and 91.92 is: 126.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.55 : 233.97 = 91.92 : x
  2. Step 2: Convert to fraction form
    169.55/233.97 = 91.92/x
  3. Step 3: Cross multiply
    169.55x = 233.97 × 91.92
  4. Step 4: Simplify right side
    169.55x = 21,507.39
  5. Step 5: Solve for x
    x = 21,507.39/169.55
  6. Step 6: Final answer
    x = 126.85

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