Home / 143,800.20-198,446.22-80,135.82

Finding the Fourth Proportional to 143,800.20, 198,446.22 and 80,135.82

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Solution

The fourth proportional to 143,800.20, 198,446.22 and 80,135.82 is: 110,588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,800.20 : 198,446.22 = 80,135.82 : x
  2. Step 2: Convert to fraction form
    143,800.20/198,446.22 = 80,135.82/x
  3. Step 3: Cross multiply
    143,800.20x = 198,446.22 × 80,135.82
  4. Step 4: Simplify right side
    143,800.20x = 15,902,650,565.60
  5. Step 5: Solve for x
    x = 15,902,650,565.60/143,800.20
  6. Step 6: Final answer
    x = 110,588.51

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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.