Home / 281,664.92-422,566.68-81,987.14

Finding the Fourth Proportional to 281,664.92, 422,566.68 and 81,987.14

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Solution

The fourth proportional to 281,664.92, 422,566.68 and 81,987.14 is: 123,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,664.92 : 422,566.68 = 81,987.14 : x
  2. Step 2: Convert to fraction form
    281,664.92/422,566.68 = 81,987.14/x
  3. Step 3: Cross multiply
    281,664.92x = 422,566.68 × 81,987.14
  4. Step 4: Simplify right side
    281,664.92x = 34,645,033,552.50
  5. Step 5: Solve for x
    x = 34,645,033,552.50/281,664.92
  6. Step 6: Final answer
    x = 123,000.88

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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.