Home / 188,912.85-260,633.79-107,231.37

Finding the Fourth Proportional to 188,912.85, 260,633.79 and 107,231.37

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Solution

The fourth proportional to 188,912.85, 260,633.79 and 107,231.37 is: 147,941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,912.85 : 260,633.79 = 107,231.37 : x
  2. Step 2: Convert to fraction form
    188,912.85/260,633.79 = 107,231.37/x
  3. Step 3: Cross multiply
    188,912.85x = 260,633.79 × 107,231.37
  4. Step 4: Simplify right side
    188,912.85x = 27,948,118,369.99
  5. Step 5: Solve for x
    x = 27,948,118,369.99/188,912.85
  6. Step 6: Final answer
    x = 147,941.86

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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.