Home / 101,984.72-140,754.12-80,425.04

Finding the Fourth Proportional to 101,984.72, 140,754.12 and 80,425.04

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Solution

The fourth proportional to 101,984.72, 140,754.12 and 80,425.04 is: 110,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,984.72 : 140,754.12 = 80,425.04 : x
  2. Step 2: Convert to fraction form
    101,984.72/140,754.12 = 80,425.04/x
  3. Step 3: Cross multiply
    101,984.72x = 140,754.12 × 80,425.04
  4. Step 4: Simplify right side
    101,984.72x = 11,320,155,731.16
  5. Step 5: Solve for x
    x = 11,320,155,731.16/101,984.72
  6. Step 6: Final answer
    x = 110,998.55

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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.