Home / 113,825.70-170,738.55-80,583.30

Finding the Fourth Proportional to 113,825.70, 170,738.55 and 80,583.30

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Solution

The fourth proportional to 113,825.70, 170,738.55 and 80,583.30 is: 120,874.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,825.70 : 170,738.55 = 80,583.30 : x
  2. Step 2: Convert to fraction form
    113,825.70/170,738.55 = 80,583.30/x
  3. Step 3: Cross multiply
    113,825.70x = 170,738.55 × 80,583.30
  4. Step 4: Simplify right side
    113,825.70x = 13,758,675,796.22
  5. Step 5: Solve for x
    x = 13,758,675,796.22/113,825.70
  6. Step 6: Final answer
    x = 120,874.95

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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.