Home / 126,270.20-189,610.10-91,454.20

Finding the Fourth Proportional to 126,270.20, 189,610.10 and 91,454.20

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Solution

The fourth proportional to 126,270.20, 189,610.10 and 91,454.20 is: 137,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,270.20 : 189,610.10 = 91,454.20 : x
  2. Step 2: Convert to fraction form
    126,270.20/189,610.10 = 91,454.20/x
  3. Step 3: Cross multiply
    126,270.20x = 189,610.10 × 91,454.20
  4. Step 4: Simplify right side
    126,270.20x = 17,340,640,007.42
  5. Step 5: Solve for x
    x = 17,340,640,007.42/126,270.20
  6. Step 6: Final answer
    x = 137,329.63

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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.