Home / 205,761.12-283,961.39-115,111.68

Finding the Fourth Proportional to 205,761.12, 283,961.39 and 115,111.68

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Solution

The fourth proportional to 205,761.12, 283,961.39 and 115,111.68 is: 158,860.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,761.12 : 283,961.39 = 115,111.68 : x
  2. Step 2: Convert to fraction form
    205,761.12/283,961.39 = 115,111.68/x
  3. Step 3: Cross multiply
    205,761.12x = 283,961.39 × 115,111.68
  4. Step 4: Simplify right side
    205,761.12x = 32,687,272,082.48
  5. Step 5: Solve for x
    x = 32,687,272,082.48/205,761.12
  6. Step 6: Final answer
    x = 158,860.29

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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.