Home / 126,306.76-189,333.42-43,143.88

Finding the Fourth Proportional to 126,306.76, 189,333.42 and 43,143.88

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Solution

The fourth proportional to 126,306.76, 189,333.42 and 43,143.88 is: 64,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,306.76 : 189,333.42 = 43,143.88 : x
  2. Step 2: Convert to fraction form
    126,306.76/189,333.42 = 43,143.88/x
  3. Step 3: Cross multiply
    126,306.76x = 189,333.42 × 43,143.88
  4. Step 4: Simplify right side
    126,306.76x = 8,168,578,352.47
  5. Step 5: Solve for x
    x = 8,168,578,352.47/126,306.76
  6. Step 6: Final answer
    x = 64,672.53

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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.