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Finding the Third Proportional to 83,126 and 172,165

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Solution

The third proportional to 83,126 and 172,165 is: 356,576.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,126 : 172,165 = 172,165 : x
  2. Step 2: Convert to fraction form
    83,126/172,165 = 172,165/x
  3. Step 3: Cross multiply
    83,126x = 172,165 × 172,165
  4. Step 4: Simplify right side
    83,126x = 29,640,787,225
  5. Step 5: Solve for x
    x = 29,640,787,225/83,126
  6. Step 6: Final answer
    x = 356,576.61

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.