Home / 281,231.19-421,759.86-81,566.25

Finding the Fourth Proportional to 281,231.19, 421,759.86 and 81,566.25

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Solution

The fourth proportional to 281,231.19, 421,759.86 and 81,566.25 is: 122,324.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,231.19 : 421,759.86 = 81,566.25 : x
  2. Step 2: Convert to fraction form
    281,231.19/421,759.86 = 81,566.25/x
  3. Step 3: Cross multiply
    281,231.19x = 421,759.86 × 81,566.25
  4. Step 4: Simplify right side
    281,231.19x = 34,401,370,180.73
  5. Step 5: Solve for x
    x = 34,401,370,180.73/281,231.19
  6. Step 6: Final answer
    x = 122,324.16

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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.