Home / 121,718.03-182,620.78-107,108.87

Finding the Fourth Proportional to 121,718.03, 182,620.78 and 107,108.87

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Solution

The fourth proportional to 121,718.03, 182,620.78 and 107,108.87 is: 160,701.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,718.03 : 182,620.78 = 107,108.87 : x
  2. Step 2: Convert to fraction form
    121,718.03/182,620.78 = 107,108.87/x
  3. Step 3: Cross multiply
    121,718.03x = 182,620.78 × 107,108.87
  4. Step 4: Simplify right side
    121,718.03x = 19,560,304,203.44
  5. Step 5: Solve for x
    x = 19,560,304,203.44/121,718.03
  6. Step 6: Final answer
    x = 160,701.79

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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.