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Finding the Third Proportional to 75,539 and 102,229

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Solution

The third proportional to 75,539 and 102,229 is: 138,349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,539 : 102,229 = 102,229 : x
  2. Step 2: Convert to fraction form
    75,539/102,229 = 102,229/x
  3. Step 3: Cross multiply
    75,539x = 102,229 × 102,229
  4. Step 4: Simplify right side
    75,539x = 10,450,768,441
  5. Step 5: Solve for x
    x = 10,450,768,441/75,539
  6. Step 6: Final answer
    x = 138,349.31

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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.