Home / 126,279.50-189,471.18-92,716.90

Finding the Fourth Proportional to 126,279.50, 189,471.18 and 92,716.90

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Solution

The fourth proportional to 126,279.50, 189,471.18 and 92,716.90 is: 139,113.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,279.50 : 189,471.18 = 92,716.90 : x
  2. Step 2: Convert to fraction form
    126,279.50/189,471.18 = 92,716.90/x
  3. Step 3: Cross multiply
    126,279.50x = 189,471.18 × 92,716.90
  4. Step 4: Simplify right side
    126,279.50x = 17,567,179,501.59
  5. Step 5: Solve for x
    x = 17,567,179,501.59/126,279.50
  6. Step 6: Final answer
    x = 139,113.48

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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.