Home / 204,353.38-281,813.61-135,319.78

Finding the Fourth Proportional to 204,353.38, 281,813.61 and 135,319.78

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Solution

The fourth proportional to 204,353.38, 281,813.61 and 135,319.78 is: 186,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,353.38 : 281,813.61 = 135,319.78 : x
  2. Step 2: Convert to fraction form
    204,353.38/281,813.61 = 135,319.78/x
  3. Step 3: Cross multiply
    204,353.38x = 281,813.61 × 135,319.78
  4. Step 4: Simplify right side
    204,353.38x = 38,134,955,706.21
  5. Step 5: Solve for x
    x = 38,134,955,706.21/204,353.38
  6. Step 6: Final answer
    x = 186,612.80

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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.