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Finding the Third Proportional to 83,124 and 172,161

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Solution

The third proportional to 83,124 and 172,161 is: 356,568.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,124 : 172,161 = 172,161 : x
  2. Step 2: Convert to fraction form
    83,124/172,161 = 172,161/x
  3. Step 3: Cross multiply
    83,124x = 172,161 × 172,161
  4. Step 4: Simplify right side
    83,124x = 29,639,409,921
  5. Step 5: Solve for x
    x = 29,639,409,921/83,124
  6. Step 6: Final answer
    x = 356,568.62

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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.