Home / 117,143.20-175,727.60-113,456.80

Finding the Fourth Proportional to 117,143.20, 175,727.60 and 113,456.80

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Solution

The fourth proportional to 117,143.20, 175,727.60 and 113,456.80 is: 170,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,143.20 : 175,727.60 = 113,456.80 : x
  2. Step 2: Convert to fraction form
    117,143.20/175,727.60 = 113,456.80/x
  3. Step 3: Cross multiply
    117,143.20x = 175,727.60 × 113,456.80
  4. Step 4: Simplify right side
    117,143.20x = 19,937,491,167.68
  5. Step 5: Solve for x
    x = 19,937,491,167.68/117,143.20
  6. Step 6: Final answer
    x = 170,197.60

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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.