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Finding the Third Proportional to 83,376 and 129,336.75

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Solution

The third proportional to 83,376 and 129,336.75 is: 200,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,376 : 129,336.75 = 129,336.75 : x
  2. Step 2: Convert to fraction form
    83,376/129,336.75 = 129,336.75/x
  3. Step 3: Cross multiply
    83,376x = 129,336.75 × 129,336.75
  4. Step 4: Simplify right side
    83,376x = 16,727,994,900.56
  5. Step 5: Solve for x
    x = 16,727,994,900.56/83,376
  6. Step 6: Final answer
    x = 200,633.21

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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.