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Finding the Fourth Proportional to 124.26, 171.36 and 96.60

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Solution

The fourth proportional to 124.26, 171.36 and 96.60 is: 133.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.26 : 171.36 = 96.60 : x
  2. Step 2: Convert to fraction form
    124.26/171.36 = 96.60/x
  3. Step 3: Cross multiply
    124.26x = 171.36 × 96.60
  4. Step 4: Simplify right side
    124.26x = 16,553.38
  5. Step 5: Solve for x
    x = 16,553.38/124.26
  6. Step 6: Final answer
    x = 133.22

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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.