Home / 221,002.76-331,553.66-80,757.80

Finding the Fourth Proportional to 221,002.76, 331,553.66 and 80,757.80

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Solution

The fourth proportional to 221,002.76, 331,553.66 and 80,757.80 is: 121,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,002.76 : 331,553.66 = 80,757.80 : x
  2. Step 2: Convert to fraction form
    221,002.76/331,553.66 = 80,757.80/x
  3. Step 3: Cross multiply
    221,002.76x = 331,553.66 × 80,757.80
  4. Step 4: Simplify right side
    221,002.76x = 26,775,544,163.55
  5. Step 5: Solve for x
    x = 26,775,544,163.55/221,002.76
  6. Step 6: Final answer
    x = 121,154.80

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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.