Home / 394,100.22-591,233.36-127,839.95

Finding the Fourth Proportional to 394,100.22, 591,233.36 and 127,839.95

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Solution

The fourth proportional to 394,100.22, 591,233.36 and 127,839.95 is: 191,786.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,100.22 : 591,233.36 = 127,839.95 : x
  2. Step 2: Convert to fraction form
    394,100.22/591,233.36 = 127,839.95/x
  3. Step 3: Cross multiply
    394,100.22x = 591,233.36 × 127,839.95
  4. Step 4: Simplify right side
    394,100.22x = 75,583,239,585.37
  5. Step 5: Solve for x
    x = 75,583,239,585.37/394,100.22
  6. Step 6: Final answer
    x = 191,786.85

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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.