Home / 268,799.58-403,259.49-81,825.66

Finding the Fourth Proportional to 268,799.58, 403,259.49 and 81,825.66

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Solution

The fourth proportional to 268,799.58, 403,259.49 and 81,825.66 is: 122,756.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,799.58 : 403,259.49 = 81,825.66 : x
  2. Step 2: Convert to fraction form
    268,799.58/403,259.49 = 81,825.66/x
  3. Step 3: Cross multiply
    268,799.58x = 403,259.49 × 81,825.66
  4. Step 4: Simplify right side
    268,799.58x = 32,996,973,920.51
  5. Step 5: Solve for x
    x = 32,996,973,920.51/268,799.58
  6. Step 6: Final answer
    x = 122,756.79

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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.