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Finding the Third Proportional to 69,903 and 124,902

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Solution

The third proportional to 69,903 and 124,902 is: 223,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,903 : 124,902 = 124,902 : x
  2. Step 2: Convert to fraction form
    69,903/124,902 = 124,902/x
  3. Step 3: Cross multiply
    69,903x = 124,902 × 124,902
  4. Step 4: Simplify right side
    69,903x = 15,600,509,604
  5. Step 5: Solve for x
    x = 15,600,509,604/69,903
  6. Step 6: Final answer
    x = 223,173.68

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.