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Finding the Third Proportional to 87,532 and 128,541

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Solution

The third proportional to 87,532 and 128,541 is: 188,762.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,532 : 128,541 = 128,541 : x
  2. Step 2: Convert to fraction form
    87,532/128,541 = 128,541/x
  3. Step 3: Cross multiply
    87,532x = 128,541 × 128,541
  4. Step 4: Simplify right side
    87,532x = 16,522,788,681
  5. Step 5: Solve for x
    x = 16,522,788,681/87,532
  6. Step 6: Final answer
    x = 188,762.84

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.