Home / 205,910.20-284,054.82-129,522.04

Finding the Fourth Proportional to 205,910.20, 284,054.82 and 129,522.04

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Solution

The fourth proportional to 205,910.20, 284,054.82 and 129,522.04 is: 178,676.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,910.20 : 284,054.82 = 129,522.04 : x
  2. Step 2: Convert to fraction form
    205,910.20/284,054.82 = 129,522.04/x
  3. Step 3: Cross multiply
    205,910.20x = 284,054.82 × 129,522.04
  4. Step 4: Simplify right side
    205,910.20x = 36,791,359,758.23
  5. Step 5: Solve for x
    x = 36,791,359,758.23/205,910.20
  6. Step 6: Final answer
    x = 178,676.72

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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.