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Finding the Fourth Proportional to 124.24, 171.20 and 96.62

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Solution

The fourth proportional to 124.24, 171.20 and 96.62 is: 133.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.24 : 171.20 = 96.62 : x
  2. Step 2: Convert to fraction form
    124.24/171.20 = 96.62/x
  3. Step 3: Cross multiply
    124.24x = 171.20 × 96.62
  4. Step 4: Simplify right side
    124.24x = 16,541.34
  5. Step 5: Solve for x
    x = 16,541.34/124.24
  6. Step 6: Final answer
    x = 133.14

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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.