Home / 281,310.25-422,018.69-91,754.76

Finding the Fourth Proportional to 281,310.25, 422,018.69 and 91,754.76

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Solution

The fourth proportional to 281,310.25, 422,018.69 and 91,754.76 is: 137,649.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,310.25 : 422,018.69 = 91,754.76 : x
  2. Step 2: Convert to fraction form
    281,310.25/422,018.69 = 91,754.76/x
  3. Step 3: Cross multiply
    281,310.25x = 422,018.69 × 91,754.76
  4. Step 4: Simplify right side
    281,310.25x = 38,722,223,616.46
  5. Step 5: Solve for x
    x = 38,722,223,616.46/281,310.25
  6. Step 6: Final answer
    x = 137,649.53

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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.