Home / 126,010.58-189,049.28-54,902.70

Finding the Fourth Proportional to 126,010.58, 189,049.28 and 54,902.70

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Solution

The fourth proportional to 126,010.58, 189,049.28 and 54,902.70 is: 82,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,010.58 : 189,049.28 = 54,902.70 : x
  2. Step 2: Convert to fraction form
    126,010.58/189,049.28 = 54,902.70/x
  3. Step 3: Cross multiply
    126,010.58x = 189,049.28 × 54,902.70
  4. Step 4: Simplify right side
    126,010.58x = 10,379,315,630.54
  5. Step 5: Solve for x
    x = 10,379,315,630.54/126,010.58
  6. Step 6: Final answer
    x = 82,368.61

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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.