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Finding the Fourth Proportional to 98.92, 136.11 and 96.23

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Solution

The fourth proportional to 98.92, 136.11 and 96.23 is: 132.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.92 : 136.11 = 96.23 : x
  2. Step 2: Convert to fraction form
    98.92/136.11 = 96.23/x
  3. Step 3: Cross multiply
    98.92x = 136.11 × 96.23
  4. Step 4: Simplify right side
    98.92x = 13,098.57
  5. Step 5: Solve for x
    x = 13,098.57/98.92
  6. Step 6: Final answer
    x = 132.42

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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.