Home / 117,139.20-175,721.60-113,452.80

Finding the Fourth Proportional to 117,139.20, 175,721.60 and 113,452.80

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Solution

The fourth proportional to 117,139.20, 175,721.60 and 113,452.80 is: 170,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,139.20 : 175,721.60 = 113,452.80 : x
  2. Step 2: Convert to fraction form
    117,139.20/175,721.60 = 113,452.80/x
  3. Step 3: Cross multiply
    117,139.20x = 175,721.60 × 113,452.80
  4. Step 4: Simplify right side
    117,139.20x = 19,936,107,540.48
  5. Step 5: Solve for x
    x = 19,936,107,540.48/117,139.20
  6. Step 6: Final answer
    x = 170,191.60

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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.