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Finding the Third Proportional to 87,029.44 and 117,422.16

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Solution

The third proportional to 87,029.44 and 117,422.16 is: 158,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,029.44 : 117,422.16 = 117,422.16 : x
  2. Step 2: Convert to fraction form
    87,029.44/117,422.16 = 117,422.16/x
  3. Step 3: Cross multiply
    87,029.44x = 117,422.16 × 117,422.16
  4. Step 4: Simplify right side
    87,029.44x = 13,787,962,778.40
  5. Step 5: Solve for x
    x = 13,787,962,778.40/87,029.44
  6. Step 6: Final answer
    x = 158,428.72

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.