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Finding the Fourth Proportional to 96.27, 132.80 and 93.11

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Solution

The fourth proportional to 96.27, 132.80 and 93.11 is: 128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.27 : 132.80 = 93.11 : x
  2. Step 2: Convert to fraction form
    96.27/132.80 = 93.11/x
  3. Step 3: Cross multiply
    96.27x = 132.80 × 93.11
  4. Step 4: Simplify right side
    96.27x = 12,363.88
  5. Step 5: Solve for x
    x = 12,363.88/96.27
  6. Step 6: Final answer
    x = 128.43

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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.