Home / 141,143.23-194,778.35-77,481.03

Finding the Fourth Proportional to 141,143.23, 194,778.35 and 77,481.03

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Solution

The fourth proportional to 141,143.23, 194,778.35 and 77,481.03 is: 106,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,143.23 : 194,778.35 = 77,481.03 : x
  2. Step 2: Convert to fraction form
    141,143.23/194,778.35 = 77,481.03/x
  3. Step 3: Cross multiply
    141,143.23x = 194,778.35 × 77,481.03
  4. Step 4: Simplify right side
    141,143.23x = 15,091,627,179.70
  5. Step 5: Solve for x
    x = 15,091,627,179.70/141,143.23
  6. Step 6: Final answer
    x = 106,924.20

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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.