Home / 188,961.55-260,766.94-104,078.61

Finding the Fourth Proportional to 188,961.55, 260,766.94 and 104,078.61

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Solution

The fourth proportional to 188,961.55, 260,766.94 and 104,078.61 is: 143,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,961.55 : 260,766.94 = 104,078.61 : x
  2. Step 2: Convert to fraction form
    188,961.55/260,766.94 = 104,078.61/x
  3. Step 3: Cross multiply
    188,961.55x = 260,766.94 × 104,078.61
  4. Step 4: Simplify right side
    188,961.55x = 27,140,261,366.83
  5. Step 5: Solve for x
    x = 27,140,261,366.83/188,961.55
  6. Step 6: Final answer
    x = 143,628.49

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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.