Home / 80,974.31-111,686.67-70,199.91

Finding the Fourth Proportional to 80,974.31, 111,686.67 and 70,199.91

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Solution

The fourth proportional to 80,974.31, 111,686.67 and 70,199.91 is: 96,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,974.31 : 111,686.67 = 70,199.91 : x
  2. Step 2: Convert to fraction form
    80,974.31/111,686.67 = 70,199.91/x
  3. Step 3: Cross multiply
    80,974.31x = 111,686.67 × 70,199.91
  4. Step 4: Simplify right side
    80,974.31x = 7,840,394,182.20
  5. Step 5: Solve for x
    x = 7,840,394,182.20/80,974.31
  6. Step 6: Final answer
    x = 96,825.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.