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Finding the Fourth Proportional to 109,874, 151,608.84 and 62,112.08

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Solution

The fourth proportional to 109,874, 151,608.84 and 62,112.08 is: 85,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,874 : 151,608.84 = 62,112.08 : x
  2. Step 2: Convert to fraction form
    109,874/151,608.84 = 62,112.08/x
  3. Step 3: Cross multiply
    109,874x = 151,608.84 × 62,112.08
  4. Step 4: Simplify right side
    109,874x = 9,416,740,398.79
  5. Step 5: Solve for x
    x = 9,416,740,398.79/109,874
  6. Step 6: Final answer
    x = 85,704.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.