Home / 101,619.11-140,257.69-67,629.02

Finding the Fourth Proportional to 101,619.11, 140,257.69 and 67,629.02

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Solution

The fourth proportional to 101,619.11, 140,257.69 and 67,629.02 is: 93,343.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,619.11 : 140,257.69 = 67,629.02 : x
  2. Step 2: Convert to fraction form
    101,619.11/140,257.69 = 67,629.02/x
  3. Step 3: Cross multiply
    101,619.11x = 140,257.69 × 67,629.02
  4. Step 4: Simplify right side
    101,619.11x = 9,485,489,251.80
  5. Step 5: Solve for x
    x = 9,485,489,251.80/101,619.11
  6. Step 6: Final answer
    x = 93,343.56

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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.