Home / 268,849.13-403,273.69-81,860.63

Finding the Fourth Proportional to 268,849.13, 403,273.69 and 81,860.63

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Solution

The fourth proportional to 268,849.13, 403,273.69 and 81,860.63 is: 122,790.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,849.13 : 403,273.69 = 81,860.63 : x
  2. Step 2: Convert to fraction form
    268,849.13/403,273.69 = 81,860.63/x
  3. Step 3: Cross multiply
    268,849.13x = 403,273.69 × 81,860.63
  4. Step 4: Simplify right side
    268,849.13x = 33,012,236,104.80
  5. Step 5: Solve for x
    x = 33,012,236,104.80/268,849.13
  6. Step 6: Final answer
    x = 122,790.94

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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.