Home / 126,079.56-189,162.54-43,031.88

Finding the Fourth Proportional to 126,079.56, 189,162.54 and 43,031.88

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Solution

The fourth proportional to 126,079.56, 189,162.54 and 43,031.88 is: 64,562.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,079.56 : 189,162.54 = 43,031.88 : x
  2. Step 2: Convert to fraction form
    126,079.56/189,162.54 = 43,031.88/x
  3. Step 3: Cross multiply
    126,079.56x = 189,162.54 × 43,031.88
  4. Step 4: Simplify right side
    126,079.56x = 8,140,019,721.78
  5. Step 5: Solve for x
    x = 8,140,019,721.78/126,079.56
  6. Step 6: Final answer
    x = 64,562.56

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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.