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Finding the Fourth Proportional to 118.92, 163.76 and 102.54

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Solution

The fourth proportional to 118.92, 163.76 and 102.54 is: 141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.92 : 163.76 = 102.54 : x
  2. Step 2: Convert to fraction form
    118.92/163.76 = 102.54/x
  3. Step 3: Cross multiply
    118.92x = 163.76 × 102.54
  4. Step 4: Simplify right side
    118.92x = 16,791.95
  5. Step 5: Solve for x
    x = 16,791.95/118.92
  6. Step 6: Final answer
    x = 141.20

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