Home / 185,940.78-278,604.67-107,121.30

Finding the Fourth Proportional to 185,940.78, 278,604.67 and 107,121.30

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Solution

The fourth proportional to 185,940.78, 278,604.67 and 107,121.30 is: 160,505.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,940.78 : 278,604.67 = 107,121.30 : x
  2. Step 2: Convert to fraction form
    185,940.78/278,604.67 = 107,121.30/x
  3. Step 3: Cross multiply
    185,940.78x = 278,604.67 × 107,121.30
  4. Step 4: Simplify right side
    185,940.78x = 29,844,494,436.47
  5. Step 5: Solve for x
    x = 29,844,494,436.47/185,940.78
  6. Step 6: Final answer
    x = 160,505.37

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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.