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Finding the Third Proportional to 76,939.50 and 173,634.75

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Solution

The third proportional to 76,939.50 and 173,634.75 is: 391,853.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,939.50 : 173,634.75 = 173,634.75 : x
  2. Step 2: Convert to fraction form
    76,939.50/173,634.75 = 173,634.75/x
  3. Step 3: Cross multiply
    76,939.50x = 173,634.75 × 173,634.75
  4. Step 4: Simplify right side
    76,939.50x = 30,149,026,407.56
  5. Step 5: Solve for x
    x = 30,149,026,407.56/76,939.50
  6. Step 6: Final answer
    x = 391,853.68

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.