Home / 126,939.96-189,275.06-123,452.38

Finding the Fourth Proportional to 126,939.96, 189,275.06 and 123,452.38

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Solution

The fourth proportional to 126,939.96, 189,275.06 and 123,452.38 is: 184,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,939.96 : 189,275.06 = 123,452.38 : x
  2. Step 2: Convert to fraction form
    126,939.96/189,275.06 = 123,452.38/x
  3. Step 3: Cross multiply
    126,939.96x = 189,275.06 × 123,452.38
  4. Step 4: Simplify right side
    126,939.96x = 23,366,456,235.61
  5. Step 5: Solve for x
    x = 23,366,456,235.61/126,939.96
  6. Step 6: Final answer
    x = 184,074.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.