Home / 185,306.64-255,723.38-100,423.70

Finding the Fourth Proportional to 185,306.64, 255,723.38 and 100,423.70

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Solution

The fourth proportional to 185,306.64, 255,723.38 and 100,423.70 is: 138,584.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,306.64 : 255,723.38 = 100,423.70 : x
  2. Step 2: Convert to fraction form
    185,306.64/255,723.38 = 100,423.70/x
  3. Step 3: Cross multiply
    185,306.64x = 255,723.38 × 100,423.70
  4. Step 4: Simplify right side
    185,306.64x = 25,680,687,996.11
  5. Step 5: Solve for x
    x = 25,680,687,996.11/185,306.64
  6. Step 6: Final answer
    x = 138,584.82

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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.