Home / 126,353.74-189,517.60-42,104.80

Finding the Fourth Proportional to 126,353.74, 189,517.60 and 42,104.80

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Solution

The fourth proportional to 126,353.74, 189,517.60 and 42,104.80 is: 63,152.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,353.74 : 189,517.60 = 42,104.80 : x
  2. Step 2: Convert to fraction form
    126,353.74/189,517.60 = 42,104.80/x
  3. Step 3: Cross multiply
    126,353.74x = 189,517.60 × 42,104.80
  4. Step 4: Simplify right side
    126,353.74x = 7,979,600,644.48
  5. Step 5: Solve for x
    x = 7,979,600,644.48/126,353.74
  6. Step 6: Final answer
    x = 63,152.86

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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.