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Finding the Third Proportional to 75,891 and 109,309.50

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Solution

The third proportional to 75,891 and 109,309.50 is: 157,443.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,891 : 109,309.50 = 109,309.50 : x
  2. Step 2: Convert to fraction form
    75,891/109,309.50 = 109,309.50/x
  3. Step 3: Cross multiply
    75,891x = 109,309.50 × 109,309.50
  4. Step 4: Simplify right side
    75,891x = 11,948,566,790.25
  5. Step 5: Solve for x
    x = 11,948,566,790.25/75,891
  6. Step 6: Final answer
    x = 157,443.79

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.