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Finding the Fourth Proportional to 95.11, 141.92 and 84.88

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Solution

The fourth proportional to 95.11, 141.92 and 84.88 is: 126.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.11 : 141.92 = 84.88 : x
  2. Step 2: Convert to fraction form
    95.11/141.92 = 84.88/x
  3. Step 3: Cross multiply
    95.11x = 141.92 × 84.88
  4. Step 4: Simplify right side
    95.11x = 12,046.24
  5. Step 5: Solve for x
    x = 12,046.24/95.11
  6. Step 6: Final answer
    x = 126.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.