Home / 126,481.73-189,629.19-76,550.85

Finding the Fourth Proportional to 126,481.73, 189,629.19 and 76,550.85

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Solution

The fourth proportional to 126,481.73, 189,629.19 and 76,550.85 is: 114,769.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,481.73 : 189,629.19 = 76,550.85 : x
  2. Step 2: Convert to fraction form
    126,481.73/189,629.19 = 76,550.85/x
  3. Step 3: Cross multiply
    126,481.73x = 189,629.19 × 76,550.85
  4. Step 4: Simplify right side
    126,481.73x = 14,516,275,679.31
  5. Step 5: Solve for x
    x = 14,516,275,679.31/126,481.73
  6. Step 6: Final answer
    x = 114,769.75

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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.