Home / 126,247.24-189,356.87-45,191.05

Finding the Fourth Proportional to 126,247.24, 189,356.87 and 45,191.05

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Solution

The fourth proportional to 126,247.24, 189,356.87 and 45,191.05 is: 67,781.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,247.24 : 189,356.87 = 45,191.05 : x
  2. Step 2: Convert to fraction form
    126,247.24/189,356.87 = 45,191.05/x
  3. Step 3: Cross multiply
    126,247.24x = 189,356.87 × 45,191.05
  4. Step 4: Simplify right side
    126,247.24x = 8,557,235,419.60
  5. Step 5: Solve for x
    x = 8,557,235,419.60/126,247.24
  6. Step 6: Final answer
    x = 67,781.56

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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.