Home / 203,917.50-281,414.12-113,280.39

Finding the Fourth Proportional to 203,917.50, 281,414.12 and 113,280.39

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Solution

The fourth proportional to 203,917.50, 281,414.12 and 113,280.39 is: 156,331.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,917.50 : 281,414.12 = 113,280.39 : x
  2. Step 2: Convert to fraction form
    203,917.50/281,414.12 = 113,280.39/x
  3. Step 3: Cross multiply
    203,917.50x = 281,414.12 × 113,280.39
  4. Step 4: Simplify right side
    203,917.50x = 31,878,700,698.70
  5. Step 5: Solve for x
    x = 31,878,700,698.70/203,917.50
  6. Step 6: Final answer
    x = 156,331.36

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1.5x scale

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.