Home / 214,964.08-322,449.31-81,851.72

Finding the Fourth Proportional to 214,964.08, 322,449.31 and 81,851.72

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Solution

The fourth proportional to 214,964.08, 322,449.31 and 81,851.72 is: 122,778.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,964.08 : 322,449.31 = 81,851.72 : x
  2. Step 2: Convert to fraction form
    214,964.08/322,449.31 = 81,851.72/x
  3. Step 3: Cross multiply
    214,964.08x = 322,449.31 × 81,851.72
  4. Step 4: Simplify right side
    214,964.08x = 26,393,028,665.97
  5. Step 5: Solve for x
    x = 26,393,028,665.97/214,964.08
  6. Step 6: Final answer
    x = 122,778.79

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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.