Home / 121,687.20-182,527.61-55,078.77

Finding the Fourth Proportional to 121,687.20, 182,527.61 and 55,078.77

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Solution

The fourth proportional to 121,687.20, 182,527.61 and 55,078.77 is: 82,616.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,687.20 : 182,527.61 = 55,078.77 : x
  2. Step 2: Convert to fraction form
    121,687.20/182,527.61 = 55,078.77/x
  3. Step 3: Cross multiply
    121,687.20x = 182,527.61 × 55,078.77
  4. Step 4: Simplify right side
    121,687.20x = 10,053,396,249.84
  5. Step 5: Solve for x
    x = 10,053,396,249.84/121,687.20
  6. Step 6: Final answer
    x = 82,616.71

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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.