Home / 204,111.20-281,769.12-136,242.80

Finding the Fourth Proportional to 204,111.20, 281,769.12 and 136,242.80

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Solution

The fourth proportional to 204,111.20, 281,769.12 and 136,242.80 is: 188,078.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,111.20 : 281,769.12 = 136,242.80 : x
  2. Step 2: Convert to fraction form
    204,111.20/281,769.12 = 136,242.80/x
  3. Step 3: Cross multiply
    204,111.20x = 281,769.12 × 136,242.80
  4. Step 4: Simplify right side
    204,111.20x = 38,389,013,862.34
  5. Step 5: Solve for x
    x = 38,389,013,862.34/204,111.20
  6. Step 6: Final answer
    x = 188,078.92

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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.