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Finding the Fourth Proportional to 185,017.60, 255,324.29 and 100,134.66

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Solution

The fourth proportional to 185,017.60, 255,324.29 and 100,134.66 is: 138,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,017.60 : 255,324.29 = 100,134.66 : x
  2. Step 2: Convert to fraction form
    185,017.60/255,324.29 = 100,134.66/x
  3. Step 3: Cross multiply
    185,017.60x = 255,324.29 × 100,134.66
  4. Step 4: Simplify right side
    185,017.60x = 25,566,811,425.68
  5. Step 5: Solve for x
    x = 25,566,811,425.68/185,017.60
  6. Step 6: Final answer
    x = 138,185.83

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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.