Home / 126,839.76-190,243.20-47,943.72

Finding the Fourth Proportional to 126,839.76, 190,243.20 and 47,943.72

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Solution

The fourth proportional to 126,839.76, 190,243.20 and 47,943.72 is: 71,909.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,839.76 : 190,243.20 = 47,943.72 : x
  2. Step 2: Convert to fraction form
    126,839.76/190,243.20 = 47,943.72/x
  3. Step 3: Cross multiply
    126,839.76x = 190,243.20 × 47,943.72
  4. Step 4: Simplify right side
    126,839.76x = 9,120,966,712.70
  5. Step 5: Solve for x
    x = 9,120,966,712.70/126,839.76
  6. Step 6: Final answer
    x = 71,909.37

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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.