Home / 126,354.78-189,561.33-67,247.46

Finding the Fourth Proportional to 126,354.78, 189,561.33 and 67,247.46

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Solution

The fourth proportional to 126,354.78, 189,561.33 and 67,247.46 is: 100,886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,354.78 : 189,561.33 = 67,247.46 : x
  2. Step 2: Convert to fraction form
    126,354.78/189,561.33 = 67,247.46/x
  3. Step 3: Cross multiply
    126,354.78x = 189,561.33 × 67,247.46
  4. Step 4: Simplify right side
    126,354.78x = 12,747,517,956.72
  5. Step 5: Solve for x
    x = 12,747,517,956.72/126,354.78
  6. Step 6: Final answer
    x = 100,886.71

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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.