Home / 188,183.80-281,906.63-109,131.95

Finding the Fourth Proportional to 188,183.80, 281,906.63 and 109,131.95

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Solution

The fourth proportional to 188,183.80, 281,906.63 and 109,131.95 is: 163,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,183.80 : 281,906.63 = 109,131.95 : x
  2. Step 2: Convert to fraction form
    188,183.80/281,906.63 = 109,131.95/x
  3. Step 3: Cross multiply
    188,183.80x = 281,906.63 × 109,131.95
  4. Step 4: Simplify right side
    188,183.80x = 30,765,018,840.30
  5. Step 5: Solve for x
    x = 30,765,018,840.30/188,183.80
  6. Step 6: Final answer
    x = 163,483.89

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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.