Home / 204,034.80-306,052.20-129,239.40

Finding the Fourth Proportional to 204,034.80, 306,052.20 and 129,239.40

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Solution

The fourth proportional to 204,034.80, 306,052.20 and 129,239.40 is: 193,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,034.80 : 306,052.20 = 129,239.40 : x
  2. Step 2: Convert to fraction form
    204,034.80/306,052.20 = 129,239.40/x
  3. Step 3: Cross multiply
    204,034.80x = 306,052.20 × 129,239.40
  4. Step 4: Simplify right side
    204,034.80x = 39,554,002,696.68
  5. Step 5: Solve for x
    x = 39,554,002,696.68/204,034.80
  6. Step 6: Final answer
    x = 193,859.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.