Home / 113,540.40-170,080.20-64,234.80

Finding the Fourth Proportional to 113,540.40, 170,080.20 and 64,234.80

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Solution

The fourth proportional to 113,540.40, 170,080.20 and 64,234.80 is: 96,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,540.40 : 170,080.20 = 64,234.80 : x
  2. Step 2: Convert to fraction form
    113,540.40/170,080.20 = 64,234.80/x
  3. Step 3: Cross multiply
    113,540.40x = 170,080.20 × 64,234.80
  4. Step 4: Simplify right side
    113,540.40x = 10,925,067,630.96
  5. Step 5: Solve for x
    x = 10,925,067,630.96/113,540.40
  6. Step 6: Final answer
    x = 96,221.85

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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.