Home / 141,878.73-195,794.17-78,218.81

Finding the Fourth Proportional to 141,878.73, 195,794.17 and 78,218.81

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Solution

The fourth proportional to 141,878.73, 195,794.17 and 78,218.81 is: 107,942.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,878.73 : 195,794.17 = 78,218.81 : x
  2. Step 2: Convert to fraction form
    141,878.73/195,794.17 = 78,218.81/x
  3. Step 3: Cross multiply
    141,878.73x = 195,794.17 × 78,218.81
  4. Step 4: Simplify right side
    141,878.73x = 15,314,786,542.05
  5. Step 5: Solve for x
    x = 15,314,786,542.05/141,878.73
  6. Step 6: Final answer
    x = 107,942.79

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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.