Home / 141,844.06-195,742.38-78,187.78

Finding the Fourth Proportional to 141,844.06, 195,742.38 and 78,187.78

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Solution

The fourth proportional to 141,844.06, 195,742.38 and 78,187.78 is: 107,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,844.06 : 195,742.38 = 78,187.78 : x
  2. Step 2: Convert to fraction form
    141,844.06/195,742.38 = 78,187.78/x
  3. Step 3: Cross multiply
    141,844.06x = 195,742.38 × 78,187.78
  4. Step 4: Simplify right side
    141,844.06x = 15,304,662,144.12
  5. Step 5: Solve for x
    x = 15,304,662,144.12/141,844.06
  6. Step 6: Final answer
    x = 107,897.80

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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.