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Finding the Third Proportional to 81,880 and 122,314

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Solution

The third proportional to 81,880 and 122,314 is: 182,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,880 : 122,314 = 122,314 : x
  2. Step 2: Convert to fraction form
    81,880/122,314 = 122,314/x
  3. Step 3: Cross multiply
    81,880x = 122,314 × 122,314
  4. Step 4: Simplify right side
    81,880x = 14,960,714,596
  5. Step 5: Solve for x
    x = 14,960,714,596/81,880
  6. Step 6: Final answer
    x = 182,715.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.