Home / 220,082.83-330,063.27-77,909.38

Finding the Fourth Proportional to 220,082.83, 330,063.27 and 77,909.38

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Solution

The fourth proportional to 220,082.83, 330,063.27 and 77,909.38 is: 116,842.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,082.83 : 330,063.27 = 77,909.38 : x
  2. Step 2: Convert to fraction form
    220,082.83/330,063.27 = 77,909.38/x
  3. Step 3: Cross multiply
    220,082.83x = 330,063.27 × 77,909.38
  4. Step 4: Simplify right side
    220,082.83x = 25,715,024,726.47
  5. Step 5: Solve for x
    x = 25,715,024,726.47/220,082.83
  6. Step 6: Final answer
    x = 116,842.48

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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.