Home / 188,135.31-259,618.43-107,568.11

Finding the Fourth Proportional to 188,135.31, 259,618.43 and 107,568.11

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Solution

The fourth proportional to 188,135.31, 259,618.43 and 107,568.11 is: 148,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,135.31 : 259,618.43 = 107,568.11 : x
  2. Step 2: Convert to fraction form
    188,135.31/259,618.43 = 107,568.11/x
  3. Step 3: Cross multiply
    188,135.31x = 259,618.43 × 107,568.11
  4. Step 4: Simplify right side
    188,135.31x = 27,926,663,022.62
  5. Step 5: Solve for x
    x = 27,926,663,022.62/188,135.31
  6. Step 6: Final answer
    x = 148,439.24

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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.