Home / 268,736.88-403,163.64-81,743.52

Finding the Fourth Proportional to 268,736.88, 403,163.64 and 81,743.52

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Solution

The fourth proportional to 268,736.88, 403,163.64 and 81,743.52 is: 122,633.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,736.88 : 403,163.64 = 81,743.52 : x
  2. Step 2: Convert to fraction form
    268,736.88/403,163.64 = 81,743.52/x
  3. Step 3: Cross multiply
    268,736.88x = 403,163.64 × 81,743.52
  4. Step 4: Simplify right side
    268,736.88x = 32,956,014,660.90
  5. Step 5: Solve for x
    x = 32,956,014,660.90/268,736.88
  6. Step 6: Final answer
    x = 122,633.02

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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.