Home / 205,765.41-283,967.29-115,115.97

Finding the Fourth Proportional to 205,765.41, 283,967.29 and 115,115.97

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Solution

The fourth proportional to 205,765.41, 283,967.29 and 115,115.97 is: 158,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,765.41 : 283,967.29 = 115,115.97 : x
  2. Step 2: Convert to fraction form
    205,765.41/283,967.29 = 115,115.97/x
  3. Step 3: Cross multiply
    205,765.41x = 283,967.29 × 115,115.97
  4. Step 4: Simplify right side
    205,765.41x = 32,689,170,036.62
  5. Step 5: Solve for x
    x = 32,689,170,036.62/205,765.41
  6. Step 6: Final answer
    x = 158,866.21

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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.