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Finding the Third Proportional to 67,806 and 98,631

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Solution

The third proportional to 67,806 and 98,631 is: 143,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,806 : 98,631 = 98,631 : x
  2. Step 2: Convert to fraction form
    67,806/98,631 = 98,631/x
  3. Step 3: Cross multiply
    67,806x = 98,631 × 98,631
  4. Step 4: Simplify right side
    67,806x = 9,728,074,161
  5. Step 5: Solve for x
    x = 9,728,074,161/67,806
  6. Step 6: Final answer
    x = 143,469.22

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.