Home / 126,236.90-189,249.32-55,105.42

Finding the Fourth Proportional to 126,236.90, 189,249.32 and 55,105.42

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Solution

The fourth proportional to 126,236.90, 189,249.32 and 55,105.42 is: 82,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,236.90 : 189,249.32 = 55,105.42 : x
  2. Step 2: Convert to fraction form
    126,236.90/189,249.32 = 55,105.42/x
  3. Step 3: Cross multiply
    126,236.90x = 189,249.32 × 55,105.42
  4. Step 4: Simplify right side
    126,236.90x = 10,428,663,263.31
  5. Step 5: Solve for x
    x = 10,428,663,263.31/126,236.90
  6. Step 6: Final answer
    x = 82,611.85

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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.