Home / 126,577.72-189,895.38-67,382.20

Finding the Fourth Proportional to 126,577.72, 189,895.38 and 67,382.20

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Solution

The fourth proportional to 126,577.72, 189,895.38 and 67,382.20 is: 101,088.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,577.72 : 189,895.38 = 67,382.20 : x
  2. Step 2: Convert to fraction form
    126,577.72/189,895.38 = 67,382.20/x
  3. Step 3: Cross multiply
    126,577.72x = 189,895.38 × 67,382.20
  4. Step 4: Simplify right side
    126,577.72x = 12,795,568,474.24
  5. Step 5: Solve for x
    x = 12,795,568,474.24/126,577.72
  6. Step 6: Final answer
    x = 101,088.63

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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.