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Finding the Third Proportional to 100,469 and 136,821.50

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Solution

The third proportional to 100,469 and 136,821.50 is: 186,327.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,469 : 136,821.50 = 136,821.50 : x
  2. Step 2: Convert to fraction form
    100,469/136,821.50 = 136,821.50/x
  3. Step 3: Cross multiply
    100,469x = 136,821.50 × 136,821.50
  4. Step 4: Simplify right side
    100,469x = 18,720,122,862.25
  5. Step 5: Solve for x
    x = 18,720,122,862.25/100,469
  6. Step 6: Final answer
    x = 186,327.35

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.