Home / 151,691.64-209,334.27-83,708.57

Finding the Fourth Proportional to 151,691.64, 209,334.27 and 83,708.57

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Solution

The fourth proportional to 151,691.64, 209,334.27 and 83,708.57 is: 115,517.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,691.64 : 209,334.27 = 83,708.57 : x
  2. Step 2: Convert to fraction form
    151,691.64/209,334.27 = 83,708.57/x
  3. Step 3: Cross multiply
    151,691.64x = 209,334.27 × 83,708.57
  4. Step 4: Simplify right side
    151,691.64x = 17,523,073,230.94
  5. Step 5: Solve for x
    x = 17,523,073,230.94/151,691.64
  6. Step 6: Final answer
    x = 115,517.73

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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.