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Finding the Third Proportional to 80,725.75 and 110,815

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Solution

The third proportional to 80,725.75 and 110,815 is: 152,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,725.75 : 110,815 = 110,815 : x
  2. Step 2: Convert to fraction form
    80,725.75/110,815 = 110,815/x
  3. Step 3: Cross multiply
    80,725.75x = 110,815 × 110,815
  4. Step 4: Simplify right side
    80,725.75x = 12,279,964,225
  5. Step 5: Solve for x
    x = 12,279,964,225/80,725.75
  6. Step 6: Final answer
    x = 152,119.54

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.