Home / 126,268.70-189,382.38-51,385.82

Finding the Fourth Proportional to 126,268.70, 189,382.38 and 51,385.82

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Solution

The fourth proportional to 126,268.70, 189,382.38 and 51,385.82 is: 77,070.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,268.70 : 189,382.38 = 51,385.82 : x
  2. Step 2: Convert to fraction form
    126,268.70/189,382.38 = 51,385.82/x
  3. Step 3: Cross multiply
    126,268.70x = 189,382.38 × 51,385.82
  4. Step 4: Simplify right side
    126,268.70x = 9,731,568,889.85
  5. Step 5: Solve for x
    x = 9,731,568,889.85/126,268.70
  6. Step 6: Final answer
    x = 77,070.32

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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.