Home / 188,818.43-260,561.73-108,189.87

Finding the Fourth Proportional to 188,818.43, 260,561.73 and 108,189.87

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Solution

The fourth proportional to 188,818.43, 260,561.73 and 108,189.87 is: 149,297.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,818.43 : 260,561.73 = 108,189.87 : x
  2. Step 2: Convert to fraction form
    188,818.43/260,561.73 = 108,189.87/x
  3. Step 3: Cross multiply
    188,818.43x = 260,561.73 × 108,189.87
  4. Step 4: Simplify right side
    188,818.43x = 28,190,139,695.68
  5. Step 5: Solve for x
    x = 28,190,139,695.68/188,818.43
  6. Step 6: Final answer
    x = 149,297.61

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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.