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Finding the Third Proportional to 100,859 and 133,791

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Solution

The third proportional to 100,859 and 133,791 is: 177,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,859 : 133,791 = 133,791 : x
  2. Step 2: Convert to fraction form
    100,859/133,791 = 133,791/x
  3. Step 3: Cross multiply
    100,859x = 133,791 × 133,791
  4. Step 4: Simplify right side
    100,859x = 17,900,031,681
  5. Step 5: Solve for x
    x = 17,900,031,681/100,859
  6. Step 6: Final answer
    x = 177,475.80

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.