Home / 118,780.25-163,919.39-67,791.96

Finding the Fourth Proportional to 118,780.25, 163,919.39 and 67,791.96

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Solution

The fourth proportional to 118,780.25, 163,919.39 and 67,791.96 is: 93,554.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,780.25 : 163,919.39 = 67,791.96 : x
  2. Step 2: Convert to fraction form
    118,780.25/163,919.39 = 67,791.96/x
  3. Step 3: Cross multiply
    118,780.25x = 163,919.39 × 67,791.96
  4. Step 4: Simplify right side
    118,780.25x = 11,112,416,391.14
  5. Step 5: Solve for x
    x = 11,112,416,391.14/118,780.25
  6. Step 6: Final answer
    x = 93,554.42

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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.