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Finding the Third Proportional to 81,556 and 126,045

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Solution

The third proportional to 81,556 and 126,045 is: 194,802.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,556 : 126,045 = 126,045 : x
  2. Step 2: Convert to fraction form
    81,556/126,045 = 126,045/x
  3. Step 3: Cross multiply
    81,556x = 126,045 × 126,045
  4. Step 4: Simplify right side
    81,556x = 15,887,342,025
  5. Step 5: Solve for x
    x = 15,887,342,025/81,556
  6. Step 6: Final answer
    x = 194,802.86

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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.