Home / 204,128.11-281,702.89-112,242.61

Finding the Fourth Proportional to 204,128.11, 281,702.89 and 112,242.61

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Solution

The fourth proportional to 204,128.11, 281,702.89 and 112,242.61 is: 154,898.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,128.11 : 281,702.89 = 112,242.61 : x
  2. Step 2: Convert to fraction form
    204,128.11/281,702.89 = 112,242.61/x
  3. Step 3: Cross multiply
    204,128.11x = 281,702.89 × 112,242.61
  4. Step 4: Simplify right side
    204,128.11x = 31,619,067,618.14
  5. Step 5: Solve for x
    x = 31,619,067,618.14/204,128.11
  6. Step 6: Final answer
    x = 154,898.15

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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.