Home / 113,768.85-170,514.90-80,498.52

Finding the Fourth Proportional to 113,768.85, 170,514.90 and 80,498.52

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Solution

The fourth proportional to 113,768.85, 170,514.90 and 80,498.52 is: 120,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,768.85 : 170,514.90 = 80,498.52 : x
  2. Step 2: Convert to fraction form
    113,768.85/170,514.90 = 80,498.52/x
  3. Step 3: Cross multiply
    113,768.85x = 170,514.90 × 80,498.52
  4. Step 4: Simplify right side
    113,768.85x = 13,726,197,087.95
  5. Step 5: Solve for x
    x = 13,726,197,087.95/113,768.85
  6. Step 6: Final answer
    x = 120,649.87

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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.