Home / 126,726-189,879.11-89,102.27

Finding the Fourth Proportional to 126,726, 189,879.11 and 89,102.27

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Solution

The fourth proportional to 126,726, 189,879.11 and 89,102.27 is: 133,505.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,726 : 189,879.11 = 89,102.27 : x
  2. Step 2: Convert to fraction form
    126,726/189,879.11 = 89,102.27/x
  3. Step 3: Cross multiply
    126,726x = 189,879.11 × 89,102.27
  4. Step 4: Simplify right side
    126,726x = 16,918,658,331.67
  5. Step 5: Solve for x
    x = 16,918,658,331.67/126,726
  6. Step 6: Final answer
    x = 133,505.82

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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.