Home / 141,891.54-195,811.66-78,231.62

Finding the Fourth Proportional to 141,891.54, 195,811.66 and 78,231.62

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Solution

The fourth proportional to 141,891.54, 195,811.66 and 78,231.62 is: 107,960.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,891.54 : 195,811.66 = 78,231.62 : x
  2. Step 2: Convert to fraction form
    141,891.54/195,811.66 = 78,231.62/x
  3. Step 3: Cross multiply
    141,891.54x = 195,811.66 × 78,231.62
  4. Step 4: Simplify right side
    141,891.54x = 15,318,663,376.69
  5. Step 5: Solve for x
    x = 15,318,663,376.69/141,891.54
  6. Step 6: Final answer
    x = 107,960.37

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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.