Home / 205,770.86-283,974.83-115,121.43

Finding the Fourth Proportional to 205,770.86, 283,974.83 and 115,121.43

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Solution

The fourth proportional to 205,770.86, 283,974.83 and 115,121.43 is: 158,873.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,770.86 : 283,974.83 = 115,121.43 : x
  2. Step 2: Convert to fraction form
    205,770.86/283,974.83 = 115,121.43/x
  3. Step 3: Cross multiply
    205,770.86x = 283,974.83 × 115,121.43
  4. Step 4: Simplify right side
    205,770.86x = 32,691,588,369.71
  5. Step 5: Solve for x
    x = 32,691,588,369.71/205,770.86
  6. Step 6: Final answer
    x = 158,873.75

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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.