Home / 203,190.71-280,540.19-126,826.13

Finding the Fourth Proportional to 203,190.71, 280,540.19 and 126,826.13

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Solution

The fourth proportional to 203,190.71, 280,540.19 and 126,826.13 is: 175,105.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,190.71 : 280,540.19 = 126,826.13 : x
  2. Step 2: Convert to fraction form
    203,190.71/280,540.19 = 126,826.13/x
  3. Step 3: Cross multiply
    203,190.71x = 280,540.19 × 126,826.13
  4. Step 4: Simplify right side
    203,190.71x = 35,579,826,607.16
  5. Step 5: Solve for x
    x = 35,579,826,607.16/203,190.71
  6. Step 6: Final answer
    x = 175,105.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.