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Finding the Third Proportional to 87,344.13 and 138,528.25

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Solution

The third proportional to 87,344.13 and 138,528.25 is: 219,706.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,344.13 : 138,528.25 = 138,528.25 : x
  2. Step 2: Convert to fraction form
    87,344.13/138,528.25 = 138,528.25/x
  3. Step 3: Cross multiply
    87,344.13x = 138,528.25 × 138,528.25
  4. Step 4: Simplify right side
    87,344.13x = 19,190,076,048.06
  5. Step 5: Solve for x
    x = 19,190,076,048.06/87,344.13
  6. Step 6: Final answer
    x = 219,706.55

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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.