Home / 185,004.59-255,306.33-100,121.65

Finding the Fourth Proportional to 185,004.59, 255,306.33 and 100,121.65

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Solution

The fourth proportional to 185,004.59, 255,306.33 and 100,121.65 is: 138,167.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,004.59 : 255,306.33 = 100,121.65 : x
  2. Step 2: Convert to fraction form
    185,004.59/255,306.33 = 100,121.65/x
  3. Step 3: Cross multiply
    185,004.59x = 255,306.33 × 100,121.65
  4. Step 4: Simplify right side
    185,004.59x = 25,561,691,453.85
  5. Step 5: Solve for x
    x = 25,561,691,453.85/185,004.59
  6. Step 6: Final answer
    x = 138,167.88

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1.5x scale

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.