Home / 263,473.78-395,251.98-85,939.80

Finding the Fourth Proportional to 263,473.78, 395,251.98 and 85,939.80

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Solution

The fourth proportional to 263,473.78, 395,251.98 and 85,939.80 is: 128,923.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,473.78 : 395,251.98 = 85,939.80 : x
  2. Step 2: Convert to fraction form
    263,473.78/395,251.98 = 85,939.80/x
  3. Step 3: Cross multiply
    263,473.78x = 395,251.98 × 85,939.80
  4. Step 4: Simplify right side
    263,473.78x = 33,967,876,110.80
  5. Step 5: Solve for x
    x = 33,967,876,110.80/263,473.78
  6. Step 6: Final answer
    x = 128,923.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.