Home / 80,620.25-111,001.79-73,146.85

Finding the Fourth Proportional to 80,620.25, 111,001.79 and 73,146.85

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Solution

The fourth proportional to 80,620.25, 111,001.79 and 73,146.85 is: 100,712.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,620.25 : 111,001.79 = 73,146.85 : x
  2. Step 2: Convert to fraction form
    80,620.25/111,001.79 = 73,146.85/x
  3. Step 3: Cross multiply
    80,620.25x = 111,001.79 × 73,146.85
  4. Step 4: Simplify right side
    80,620.25x = 8,119,431,188.22
  5. Step 5: Solve for x
    x = 8,119,431,188.22/80,620.25
  6. Step 6: Final answer
    x = 100,712.06

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1.5x scale

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.