Home / 204,143.80-281,734.20-122,475.11

Finding the Fourth Proportional to 204,143.80, 281,734.20 and 122,475.11

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Solution

The fourth proportional to 204,143.80, 281,734.20 and 122,475.11 is: 169,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,143.80 : 281,734.20 = 122,475.11 : x
  2. Step 2: Convert to fraction form
    204,143.80/281,734.20 = 122,475.11/x
  3. Step 3: Cross multiply
    204,143.80x = 281,734.20 × 122,475.11
  4. Step 4: Simplify right side
    204,143.80x = 34,505,427,135.76
  5. Step 5: Solve for x
    x = 34,505,427,135.76/204,143.80
  6. Step 6: Final answer
    x = 169,025.10

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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.