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Finding the Third Proportional to 90,487.13 and 125,433.56

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Solution

The third proportional to 90,487.13 and 125,433.56 is: 173,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,487.13 : 125,433.56 = 125,433.56 : x
  2. Step 2: Convert to fraction form
    90,487.13/125,433.56 = 125,433.56/x
  3. Step 3: Cross multiply
    90,487.13x = 125,433.56 × 125,433.56
  4. Step 4: Simplify right side
    90,487.13x = 15,733,578,601.44
  5. Step 5: Solve for x
    x = 15,733,578,601.44/90,487.13
  6. Step 6: Final answer
    x = 173,876.43

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.