Home / 126,387.85-189,585.65-55,273.90

Finding the Fourth Proportional to 126,387.85, 189,585.65 and 55,273.90

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Solution

The fourth proportional to 126,387.85, 189,585.65 and 55,273.90 is: 82,912.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,387.85 : 189,585.65 = 55,273.90 : x
  2. Step 2: Convert to fraction form
    126,387.85/189,585.65 = 55,273.90/x
  3. Step 3: Cross multiply
    126,387.85x = 189,585.65 × 55,273.90
  4. Step 4: Simplify right side
    126,387.85x = 10,479,137,923.76
  5. Step 5: Solve for x
    x = 10,479,137,923.76/126,387.85
  6. Step 6: Final answer
    x = 82,912.54

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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.