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Finding the Third Proportional to 87,495 and 135,736.50

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Solution

The third proportional to 87,495 and 135,736.50 is: 210,576.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,495 : 135,736.50 = 135,736.50 : x
  2. Step 2: Convert to fraction form
    87,495/135,736.50 = 135,736.50/x
  3. Step 3: Cross multiply
    87,495x = 135,736.50 × 135,736.50
  4. Step 4: Simplify right side
    87,495x = 18,424,397,432.25
  5. Step 5: Solve for x
    x = 18,424,397,432.25/87,495
  6. Step 6: Final answer
    x = 210,576.58

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.