Home / 165,540.39-228,286.94-111,215.31

Finding the Fourth Proportional to 165,540.39, 228,286.94 and 111,215.31

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Solution

The fourth proportional to 165,540.39, 228,286.94 and 111,215.31 is: 153,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,540.39 : 228,286.94 = 111,215.31 : x
  2. Step 2: Convert to fraction form
    165,540.39/228,286.94 = 111,215.31/x
  3. Step 3: Cross multiply
    165,540.39x = 228,286.94 × 111,215.31
  4. Step 4: Simplify right side
    165,540.39x = 25,389,002,244.97
  5. Step 5: Solve for x
    x = 25,389,002,244.97/165,540.39
  6. Step 6: Final answer
    x = 153,370.44

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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.