Home / 141,880.35-195,796.25-78,220.43

Finding the Fourth Proportional to 141,880.35, 195,796.25 and 78,220.43

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Solution

The fourth proportional to 141,880.35, 195,796.25 and 78,220.43 is: 107,944.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,880.35 : 195,796.25 = 78,220.43 : x
  2. Step 2: Convert to fraction form
    141,880.35/195,796.25 = 78,220.43/x
  3. Step 3: Cross multiply
    141,880.35x = 195,796.25 × 78,220.43
  4. Step 4: Simplify right side
    141,880.35x = 15,315,266,867.39
  5. Step 5: Solve for x
    x = 15,315,266,867.39/141,880.35
  6. Step 6: Final answer
    x = 107,944.95

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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.