Home / 126,344.40-189,286.20-102,843.60

Finding the Fourth Proportional to 126,344.40, 189,286.20 and 102,843.60

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Solution

The fourth proportional to 126,344.40, 189,286.20 and 102,843.60 is: 154,077.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,344.40 : 189,286.20 = 102,843.60 : x
  2. Step 2: Convert to fraction form
    126,344.40/189,286.20 = 102,843.60/x
  3. Step 3: Cross multiply
    126,344.40x = 189,286.20 × 102,843.60
  4. Step 4: Simplify right side
    126,344.40x = 19,466,874,238.32
  5. Step 5: Solve for x
    x = 19,466,874,238.32/126,344.40
  6. Step 6: Final answer
    x = 154,077.86

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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.