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Finding the Fourth Proportional to 97.38, 134.61 and 88.83

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Solution

The fourth proportional to 97.38, 134.61 and 88.83 is: 122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.38 : 134.61 = 88.83 : x
  2. Step 2: Convert to fraction form
    97.38/134.61 = 88.83/x
  3. Step 3: Cross multiply
    97.38x = 134.61 × 88.83
  4. Step 4: Simplify right side
    97.38x = 11,957.41
  5. Step 5: Solve for x
    x = 11,957.41/97.38
  6. Step 6: Final answer
    x = 122.79

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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.