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Finding the Fourth Proportional to 101,743.63, 140,244.41 and 80,198.44

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Solution

The fourth proportional to 101,743.63, 140,244.41 and 80,198.44 is: 110,546.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,743.63 : 140,244.41 = 80,198.44 : x
  2. Step 2: Convert to fraction form
    101,743.63/140,244.41 = 80,198.44/x
  3. Step 3: Cross multiply
    101,743.63x = 140,244.41 × 80,198.44
  4. Step 4: Simplify right side
    101,743.63x = 11,247,382,750.61
  5. Step 5: Solve for x
    x = 11,247,382,750.61/101,743.63
  6. Step 6: Final answer
    x = 110,546.31

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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.