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Finding the Fourth Proportional to 73,119.93, 109,723.59 and 67,171.29

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Solution

The fourth proportional to 73,119.93, 109,723.59 and 67,171.29 is: 100,797.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,119.93 : 109,723.59 = 67,171.29 : x
  2. Step 2: Convert to fraction form
    73,119.93/109,723.59 = 67,171.29/x
  3. Step 3: Cross multiply
    73,119.93x = 109,723.59 × 67,171.29
  4. Step 4: Simplify right side
    73,119.93x = 7,370,275,083.73
  5. Step 5: Solve for x
    x = 7,370,275,083.73/73,119.93
  6. Step 6: Final answer
    x = 100,797.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.