Home / 126,766.32-189,876.12-119,313.69

Finding the Fourth Proportional to 126,766.32, 189,876.12 and 119,313.69

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Solution

The fourth proportional to 126,766.32, 189,876.12 and 119,313.69 is: 178,713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,766.32 : 189,876.12 = 119,313.69 : x
  2. Step 2: Convert to fraction form
    126,766.32/189,876.12 = 119,313.69/x
  3. Step 3: Cross multiply
    126,766.32x = 189,876.12 × 119,313.69
  4. Step 4: Simplify right side
    126,766.32x = 22,654,820,520.08
  5. Step 5: Solve for x
    x = 22,654,820,520.08/126,766.32
  6. Step 6: Final answer
    x = 178,713.25

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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.