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Finding the Fourth Proportional to 129,229.49, 193,844.40 and 62,679.42

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Solution

The fourth proportional to 129,229.49, 193,844.40 and 62,679.42 is: 94,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,229.49 : 193,844.40 = 62,679.42 : x
  2. Step 2: Convert to fraction form
    129,229.49/193,844.40 = 62,679.42/x
  3. Step 3: Cross multiply
    129,229.49x = 193,844.40 × 62,679.42
  4. Step 4: Simplify right side
    129,229.49x = 12,150,054,767.91
  5. Step 5: Solve for x
    x = 12,150,054,767.91/129,229.49
  6. Step 6: Final answer
    x = 94,019.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.