Home / 126,270.20-189,478.20-47,392.40

Finding the Fourth Proportional to 126,270.20, 189,478.20 and 47,392.40

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Solution

The fourth proportional to 126,270.20, 189,478.20 and 47,392.40 is: 71,115.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,270.20 : 189,478.20 = 47,392.40 : x
  2. Step 2: Convert to fraction form
    126,270.20/189,478.20 = 47,392.40/x
  3. Step 3: Cross multiply
    126,270.20x = 189,478.20 × 47,392.40
  4. Step 4: Simplify right side
    126,270.20x = 8,979,826,645.68
  5. Step 5: Solve for x
    x = 8,979,826,645.68/126,270.20
  6. Step 6: Final answer
    x = 71,115.96

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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.