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Finding the Third Proportional to 45,638 and 68,151

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Solution

The third proportional to 45,638 and 68,151 is: 101,769.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,638 : 68,151 = 68,151 : x
  2. Step 2: Convert to fraction form
    45,638/68,151 = 68,151/x
  3. Step 3: Cross multiply
    45,638x = 68,151 × 68,151
  4. Step 4: Simplify right side
    45,638x = 4,644,558,801
  5. Step 5: Solve for x
    x = 4,644,558,801/45,638
  6. Step 6: Final answer
    x = 101,769.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.