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Finding the Third Proportional to 80,909 and 125,623.50

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Solution

The third proportional to 80,909 and 125,623.50 is: 195,049.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,909 : 125,623.50 = 125,623.50 : x
  2. Step 2: Convert to fraction form
    80,909/125,623.50 = 125,623.50/x
  3. Step 3: Cross multiply
    80,909x = 125,623.50 × 125,623.50
  4. Step 4: Simplify right side
    80,909x = 15,781,263,752.25
  5. Step 5: Solve for x
    x = 15,781,263,752.25/80,909
  6. Step 6: Final answer
    x = 195,049.55

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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.