Home / 126,422.10-189,851.85-82,244.70

Finding the Fourth Proportional to 126,422.10, 189,851.85 and 82,244.70

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Solution

The fourth proportional to 126,422.10, 189,851.85 and 82,244.70 is: 123,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,422.10 : 189,851.85 = 82,244.70 : x
  2. Step 2: Convert to fraction form
    126,422.10/189,851.85 = 82,244.70/x
  3. Step 3: Cross multiply
    126,422.10x = 189,851.85 × 82,244.70
  4. Step 4: Simplify right side
    126,422.10x = 15,614,308,447.70
  5. Step 5: Solve for x
    x = 15,614,308,447.70/126,422.10
  6. Step 6: Final answer
    x = 123,509.33

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1.5x scale

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.