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Finding the Fourth Proportional to 96.54, 133.14 and 67.38

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Solution

The fourth proportional to 96.54, 133.14 and 67.38 is: 92.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.54 : 133.14 = 67.38 : x
  2. Step 2: Convert to fraction form
    96.54/133.14 = 67.38/x
  3. Step 3: Cross multiply
    96.54x = 133.14 × 67.38
  4. Step 4: Simplify right side
    96.54x = 8,970.97
  5. Step 5: Solve for x
    x = 8,970.97/96.54
  6. Step 6: Final answer
    x = 92.92

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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.