Home / 159,514.10-220,121.51-87,882.56

Finding the Fourth Proportional to 159,514.10, 220,121.51 and 87,882.56

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Solution

The fourth proportional to 159,514.10, 220,121.51 and 87,882.56 is: 121,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,514.10 : 220,121.51 = 87,882.56 : x
  2. Step 2: Convert to fraction form
    159,514.10/220,121.51 = 87,882.56/x
  3. Step 3: Cross multiply
    159,514.10x = 220,121.51 × 87,882.56
  4. Step 4: Simplify right side
    159,514.10x = 19,344,840,269.85
  5. Step 5: Solve for x
    x = 19,344,840,269.85/159,514.10
  6. Step 6: Final answer
    x = 121,273.55

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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.