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Finding the Fourth Proportional to 168.47, 232.50 and 102.11

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Solution

The fourth proportional to 168.47, 232.50 and 102.11 is: 140.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.47 : 232.50 = 102.11 : x
  2. Step 2: Convert to fraction form
    168.47/232.50 = 102.11/x
  3. Step 3: Cross multiply
    168.47x = 232.50 × 102.11
  4. Step 4: Simplify right side
    168.47x = 23,740.58
  5. Step 5: Solve for x
    x = 23,740.58/168.47
  6. Step 6: Final answer
    x = 140.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.