Home / 281,496.90-422,273.07-81,819.03

Finding the Fourth Proportional to 281,496.90, 422,273.07 and 81,819.03

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Solution

The fourth proportional to 281,496.90, 422,273.07 and 81,819.03 is: 122,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,496.90 : 422,273.07 = 81,819.03 : x
  2. Step 2: Convert to fraction form
    281,496.90/422,273.07 = 81,819.03/x
  3. Step 3: Cross multiply
    281,496.90x = 422,273.07 × 81,819.03
  4. Step 4: Simplify right side
    281,496.90x = 34,549,972,982.52
  5. Step 5: Solve for x
    x = 34,549,972,982.52/281,496.90
  6. Step 6: Final answer
    x = 122,736.60

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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.