Home / 188,867.12-260,614.92-108,290.96

Finding the Fourth Proportional to 188,867.12, 260,614.92 and 108,290.96

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Solution

The fourth proportional to 188,867.12, 260,614.92 and 108,290.96 is: 149,429.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,867.12 : 260,614.92 = 108,290.96 : x
  2. Step 2: Convert to fraction form
    188,867.12/260,614.92 = 108,290.96/x
  3. Step 3: Cross multiply
    188,867.12x = 260,614.92 × 108,290.96
  4. Step 4: Simplify right side
    188,867.12x = 28,222,239,877.12
  5. Step 5: Solve for x
    x = 28,222,239,877.12/188,867.12
  6. Step 6: Final answer
    x = 149,429.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.