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Finding the Third Proportional to 74,418 and 108,873

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Solution

The third proportional to 74,418 and 108,873 is: 159,280.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,418 : 108,873 = 108,873 : x
  2. Step 2: Convert to fraction form
    74,418/108,873 = 108,873/x
  3. Step 3: Cross multiply
    74,418x = 108,873 × 108,873
  4. Step 4: Simplify right side
    74,418x = 11,853,330,129
  5. Step 5: Solve for x
    x = 11,853,330,129/74,418
  6. Step 6: Final answer
    x = 159,280.42

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.