Home / 204,920.40-307,052.55-129,906.30

Finding the Fourth Proportional to 204,920.40, 307,052.55 and 129,906.30

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Solution

The fourth proportional to 204,920.40, 307,052.55 and 129,906.30 is: 194,651.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,920.40 : 307,052.55 = 129,906.30 : x
  2. Step 2: Convert to fraction form
    204,920.40/307,052.55 = 129,906.30/x
  3. Step 3: Cross multiply
    204,920.40x = 307,052.55 × 129,906.30
  4. Step 4: Simplify right side
    204,920.40x = 39,888,060,676.07
  5. Step 5: Solve for x
    x = 39,888,060,676.07/204,920.40
  6. Step 6: Final answer
    x = 194,651.49

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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.