Home / 117,720.50-175,471.78-108,272.66

Finding the Fourth Proportional to 117,720.50, 175,471.78 and 108,272.66

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Solution

The fourth proportional to 117,720.50, 175,471.78 and 108,272.66 is: 161,389.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,720.50 : 175,471.78 = 108,272.66 : x
  2. Step 2: Convert to fraction form
    117,720.50/175,471.78 = 108,272.66/x
  3. Step 3: Cross multiply
    117,720.50x = 175,471.78 × 108,272.66
  4. Step 4: Simplify right side
    117,720.50x = 18,998,796,375.53
  5. Step 5: Solve for x
    x = 18,998,796,375.53/117,720.50
  6. Step 6: Final answer
    x = 161,389.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.