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Finding the Third Proportional to 87,544 and 139,364

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Solution

The third proportional to 87,544 and 139,364 is: 221,857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,544 : 139,364 = 139,364 : x
  2. Step 2: Convert to fraction form
    87,544/139,364 = 139,364/x
  3. Step 3: Cross multiply
    87,544x = 139,364 × 139,364
  4. Step 4: Simplify right side
    87,544x = 19,422,324,496
  5. Step 5: Solve for x
    x = 19,422,324,496/87,544
  6. Step 6: Final answer
    x = 221,857.86

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.