Home / 188,285.49-259,833.14-102,243.78

Finding the Fourth Proportional to 188,285.49, 259,833.14 and 102,243.78

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Solution

The fourth proportional to 188,285.49, 259,833.14 and 102,243.78 is: 141,095.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,285.49 : 259,833.14 = 102,243.78 : x
  2. Step 2: Convert to fraction form
    188,285.49/259,833.14 = 102,243.78/x
  3. Step 3: Cross multiply
    188,285.49x = 259,833.14 × 102,243.78
  4. Step 4: Simplify right side
    188,285.49x = 26,566,321,891.65
  5. Step 5: Solve for x
    x = 26,566,321,891.65/188,285.49
  6. Step 6: Final answer
    x = 141,095.96

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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.