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Finding the Fourth Proportional to 96.39, 132.30 and 93.42

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Solution

The fourth proportional to 96.39, 132.30 and 93.42 is: 128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.39 : 132.30 = 93.42 : x
  2. Step 2: Convert to fraction form
    96.39/132.30 = 93.42/x
  3. Step 3: Cross multiply
    96.39x = 132.30 × 93.42
  4. Step 4: Simplify right side
    96.39x = 12,359.47
  5. Step 5: Solve for x
    x = 12,359.47/96.39
  6. Step 6: Final answer
    x = 128.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.