Home / 188,198.19-281,928.15-109,146.33

Finding the Fourth Proportional to 188,198.19, 281,928.15 and 109,146.33

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Solution

The fourth proportional to 188,198.19, 281,928.15 and 109,146.33 is: 163,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,198.19 : 281,928.15 = 109,146.33 : x
  2. Step 2: Convert to fraction form
    188,198.19/281,928.15 = 109,146.33/x
  3. Step 3: Cross multiply
    188,198.19x = 281,928.15 × 109,146.33
  4. Step 4: Simplify right side
    188,198.19x = 30,771,422,896.19
  5. Step 5: Solve for x
    x = 30,771,422,896.19/188,198.19
  6. Step 6: Final answer
    x = 163,505.41

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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.