Home / 179,103.16-268,654.92-66,781.66

Finding the Fourth Proportional to 179,103.16, 268,654.92 and 66,781.66

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Solution

The fourth proportional to 179,103.16, 268,654.92 and 66,781.66 is: 100,172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,103.16 : 268,654.92 = 66,781.66 : x
  2. Step 2: Convert to fraction form
    179,103.16/268,654.92 = 66,781.66/x
  3. Step 3: Cross multiply
    179,103.16x = 268,654.92 × 66,781.66
  4. Step 4: Simplify right side
    179,103.16x = 17,941,221,524.77
  5. Step 5: Solve for x
    x = 17,941,221,524.77/179,103.16
  6. Step 6: Final answer
    x = 100,172.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.