Home / 205,540.20-308,310.30-57,796.20

Finding the Fourth Proportional to 205,540.20, 308,310.30 and 57,796.20

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Solution

The fourth proportional to 205,540.20, 308,310.30 and 57,796.20 is: 86,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,540.20 : 308,310.30 = 57,796.20 : x
  2. Step 2: Convert to fraction form
    205,540.20/308,310.30 = 57,796.20/x
  3. Step 3: Cross multiply
    205,540.20x = 308,310.30 × 57,796.20
  4. Step 4: Simplify right side
    205,540.20x = 17,819,163,760.86
  5. Step 5: Solve for x
    x = 17,819,163,760.86/205,540.20
  6. Step 6: Final answer
    x = 86,694.30

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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.