Home / 126,261.62-189,392.45-84,223.80

Finding the Fourth Proportional to 126,261.62, 189,392.45 and 84,223.80

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Solution

The fourth proportional to 126,261.62, 189,392.45 and 84,223.80 is: 126,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,261.62 : 189,392.45 = 84,223.80 : x
  2. Step 2: Convert to fraction form
    126,261.62/189,392.45 = 84,223.80/x
  3. Step 3: Cross multiply
    126,261.62x = 189,392.45 × 84,223.80
  4. Step 4: Simplify right side
    126,261.62x = 15,951,352,618.97
  5. Step 5: Solve for x
    x = 15,951,352,618.97/126,261.62
  6. Step 6: Final answer
    x = 126,335.72

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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.