Home / 126,349.68-189,543.24-42,082.32

Finding the Fourth Proportional to 126,349.68, 189,543.24 and 42,082.32

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Solution

The fourth proportional to 126,349.68, 189,543.24 and 42,082.32 is: 63,129.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,349.68 : 189,543.24 = 42,082.32 : x
  2. Step 2: Convert to fraction form
    126,349.68/189,543.24 = 42,082.32/x
  3. Step 3: Cross multiply
    126,349.68x = 189,543.24 × 42,082.32
  4. Step 4: Simplify right side
    126,349.68x = 7,976,419,279.52
  5. Step 5: Solve for x
    x = 7,976,419,279.52/126,349.68
  6. Step 6: Final answer
    x = 63,129.71

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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.