Home / 126,105.44-189,162.12-47,204.60

Finding the Fourth Proportional to 126,105.44, 189,162.12 and 47,204.60

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Solution

The fourth proportional to 126,105.44, 189,162.12 and 47,204.60 is: 70,808.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,105.44 : 189,162.12 = 47,204.60 : x
  2. Step 2: Convert to fraction form
    126,105.44/189,162.12 = 47,204.60/x
  3. Step 3: Cross multiply
    126,105.44x = 189,162.12 × 47,204.60
  4. Step 4: Simplify right side
    126,105.44x = 8,929,322,209.75
  5. Step 5: Solve for x
    x = 8,929,322,209.75/126,105.44
  6. Step 6: Final answer
    x = 70,808.38

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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.