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Finding the Third Proportional to 69,624 and 121,385.25

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Solution

The third proportional to 69,624 and 121,385.25 is: 211,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,624 : 121,385.25 = 121,385.25 : x
  2. Step 2: Convert to fraction form
    69,624/121,385.25 = 121,385.25/x
  3. Step 3: Cross multiply
    69,624x = 121,385.25 × 121,385.25
  4. Step 4: Simplify right side
    69,624x = 14,734,378,917.56
  5. Step 5: Solve for x
    x = 14,734,378,917.56/69,624
  6. Step 6: Final answer
    x = 211,627.87

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Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.