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Finding the Third Proportional to 69,443 and 105,137

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Solution

The third proportional to 69,443 and 105,137 is: 159,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,443 : 105,137 = 105,137 : x
  2. Step 2: Convert to fraction form
    69,443/105,137 = 105,137/x
  3. Step 3: Cross multiply
    69,443x = 105,137 × 105,137
  4. Step 4: Simplify right side
    69,443x = 11,053,788,769
  5. Step 5: Solve for x
    x = 11,053,788,769/69,443
  6. Step 6: Final answer
    x = 159,177.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.