Home / 126,382.46-189,632.29-55,295.72

Finding the Fourth Proportional to 126,382.46, 189,632.29 and 55,295.72

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Solution

The fourth proportional to 126,382.46, 189,632.29 and 55,295.72 is: 82,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,382.46 : 189,632.29 = 55,295.72 : x
  2. Step 2: Convert to fraction form
    126,382.46/189,632.29 = 55,295.72/x
  3. Step 3: Cross multiply
    126,382.46x = 189,632.29 × 55,295.72
  4. Step 4: Simplify right side
    126,382.46x = 10,485,854,010.80
  5. Step 5: Solve for x
    x = 10,485,854,010.80/126,382.46
  6. Step 6: Final answer
    x = 82,969.22

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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.