Home / 143,686.14-198,286.86-80,023.92

Finding the Fourth Proportional to 143,686.14, 198,286.86 and 80,023.92

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Solution

The fourth proportional to 143,686.14, 198,286.86 and 80,023.92 is: 110,433.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,686.14 : 198,286.86 = 80,023.92 : x
  2. Step 2: Convert to fraction form
    143,686.14/198,286.86 = 80,023.92/x
  3. Step 3: Cross multiply
    143,686.14x = 198,286.86 × 80,023.92
  4. Step 4: Simplify right side
    143,686.14x = 15,867,691,821.69
  5. Step 5: Solve for x
    x = 15,867,691,821.69/143,686.14
  6. Step 6: Final answer
    x = 110,433.00

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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.