Home / 121,954.97-182,932.46-80,392.25

Finding the Fourth Proportional to 121,954.97, 182,932.46 and 80,392.25

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Solution

The fourth proportional to 121,954.97, 182,932.46 and 80,392.25 is: 120,588.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,954.97 : 182,932.46 = 80,392.25 : x
  2. Step 2: Convert to fraction form
    121,954.97/182,932.46 = 80,392.25/x
  3. Step 3: Cross multiply
    121,954.97x = 182,932.46 × 80,392.25
  4. Step 4: Simplify right side
    121,954.97x = 14,706,352,414.28
  5. Step 5: Solve for x
    x = 14,706,352,414.28/121,954.97
  6. Step 6: Final answer
    x = 120,588.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.