Home / 203,190.95-280,540.53-126,826.38

Finding the Fourth Proportional to 203,190.95, 280,540.53 and 126,826.38

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Solution

The fourth proportional to 203,190.95, 280,540.53 and 126,826.38 is: 175,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,190.95 : 280,540.53 = 126,826.38 : x
  2. Step 2: Convert to fraction form
    203,190.95/280,540.53 = 126,826.38/x
  3. Step 3: Cross multiply
    203,190.95x = 280,540.53 × 126,826.38
  4. Step 4: Simplify right side
    203,190.95x = 35,579,939,863.18
  5. Step 5: Solve for x
    x = 35,579,939,863.18/203,190.95
  6. Step 6: Final answer
    x = 175,105.93

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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.