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Finding the Third Proportional to 83,566 and 129,458

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Solution

The third proportional to 83,566 and 129,458 is: 200,552.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,566 : 129,458 = 129,458 : x
  2. Step 2: Convert to fraction form
    83,566/129,458 = 129,458/x
  3. Step 3: Cross multiply
    83,566x = 129,458 × 129,458
  4. Step 4: Simplify right side
    83,566x = 16,759,373,764
  5. Step 5: Solve for x
    x = 16,759,373,764/83,566
  6. Step 6: Final answer
    x = 200,552.54

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.