Home / 141,917.58-195,842.07-78,255.36

Finding the Fourth Proportional to 141,917.58, 195,842.07 and 78,255.36

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Solution

The fourth proportional to 141,917.58, 195,842.07 and 78,255.36 is: 107,990.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,917.58 : 195,842.07 = 78,255.36 : x
  2. Step 2: Convert to fraction form
    141,917.58/195,842.07 = 78,255.36/x
  3. Step 3: Cross multiply
    141,917.58x = 195,842.07 × 78,255.36
  4. Step 4: Simplify right side
    141,917.58x = 15,325,691,691.00
  5. Step 5: Solve for x
    x = 15,325,691,691.00/141,917.58
  6. Step 6: Final answer
    x = 107,990.09

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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.