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Finding the Fourth Proportional to 124.62, 171.98 and 69.37

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Solution

The fourth proportional to 124.62, 171.98 and 69.37 is: 95.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.62 : 171.98 = 69.37 : x
  2. Step 2: Convert to fraction form
    124.62/171.98 = 69.37/x
  3. Step 3: Cross multiply
    124.62x = 171.98 × 69.37
  4. Step 4: Simplify right side
    124.62x = 11,930.00
  5. Step 5: Solve for x
    x = 11,930.00/124.62
  6. Step 6: Final answer
    x = 95.73

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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.