Home / 140,057.97-193,272.31-79,620.22

Finding the Fourth Proportional to 140,057.97, 193,272.31 and 79,620.22

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Solution

The fourth proportional to 140,057.97, 193,272.31 and 79,620.22 is: 109,871.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,057.97 : 193,272.31 = 79,620.22 : x
  2. Step 2: Convert to fraction form
    140,057.97/193,272.31 = 79,620.22/x
  3. Step 3: Cross multiply
    140,057.97x = 193,272.31 × 79,620.22
  4. Step 4: Simplify right side
    140,057.97x = 15,388,383,842.11
  5. Step 5: Solve for x
    x = 15,388,383,842.11/140,057.97
  6. Step 6: Final answer
    x = 109,871.53

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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.