Home / 126,868.68-190,105.20-47,939.76

Finding the Fourth Proportional to 126,868.68, 190,105.20 and 47,939.76

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Solution

The fourth proportional to 126,868.68, 190,105.20 and 47,939.76 is: 71,834.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,868.68 : 190,105.20 = 47,939.76 : x
  2. Step 2: Convert to fraction form
    126,868.68/190,105.20 = 47,939.76/x
  3. Step 3: Cross multiply
    126,868.68x = 190,105.20 × 47,939.76
  4. Step 4: Simplify right side
    126,868.68x = 9,113,597,662.75
  5. Step 5: Solve for x
    x = 9,113,597,662.75/126,868.68
  6. Step 6: Final answer
    x = 71,834.89

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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.