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Finding the Third Proportional to 123,980.75 and 185,490.75

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Solution

The third proportional to 123,980.75 and 185,490.75 is: 277,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,980.75 : 185,490.75 = 185,490.75 : x
  2. Step 2: Convert to fraction form
    123,980.75/185,490.75 = 185,490.75/x
  3. Step 3: Cross multiply
    123,980.75x = 185,490.75 × 185,490.75
  4. Step 4: Simplify right side
    123,980.75x = 34,406,818,335.56
  5. Step 5: Solve for x
    x = 34,406,818,335.56/123,980.75
  6. Step 6: Final answer
    x = 277,517.42

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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.