Home / 188,761.11-260,490.37-103,878.17

Finding the Fourth Proportional to 188,761.11, 260,490.37 and 103,878.17

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Solution

The fourth proportional to 188,761.11, 260,490.37 and 103,878.17 is: 143,351.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,761.11 : 260,490.37 = 103,878.17 : x
  2. Step 2: Convert to fraction form
    188,761.11/260,490.37 = 103,878.17/x
  3. Step 3: Cross multiply
    188,761.11x = 260,490.37 × 103,878.17
  4. Step 4: Simplify right side
    188,761.11x = 27,059,262,418.83
  5. Step 5: Solve for x
    x = 27,059,262,418.83/188,761.11
  6. Step 6: Final answer
    x = 143,351.89

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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.