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Finding the Third Proportional to 121,839 and 182,760

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Solution

The third proportional to 121,839 and 182,760 is: 274,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,839 : 182,760 = 182,760 : x
  2. Step 2: Convert to fraction form
    121,839/182,760 = 182,760/x
  3. Step 3: Cross multiply
    121,839x = 182,760 × 182,760
  4. Step 4: Simplify right side
    121,839x = 33,401,217,600
  5. Step 5: Solve for x
    x = 33,401,217,600/121,839
  6. Step 6: Final answer
    x = 274,142.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.