Home / 136,569.78-188,451.09-82,867.86

Finding the Fourth Proportional to 136,569.78, 188,451.09 and 82,867.86

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Solution

The fourth proportional to 136,569.78, 188,451.09 and 82,867.86 is: 114,348.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,569.78 : 188,451.09 = 82,867.86 : x
  2. Step 2: Convert to fraction form
    136,569.78/188,451.09 = 82,867.86/x
  3. Step 3: Cross multiply
    136,569.78x = 188,451.09 × 82,867.86
  4. Step 4: Simplify right side
    136,569.78x = 15,616,538,542.97
  5. Step 5: Solve for x
    x = 15,616,538,542.97/136,569.78
  6. Step 6: Final answer
    x = 114,348.42

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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.