Home / 268,832.99-403,307.82-81,839.63

Finding the Fourth Proportional to 268,832.99, 403,307.82 and 81,839.63

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Solution

The fourth proportional to 268,832.99, 403,307.82 and 81,839.63 is: 122,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,832.99 : 403,307.82 = 81,839.63 : x
  2. Step 2: Convert to fraction form
    268,832.99/403,307.82 = 81,839.63/x
  3. Step 3: Cross multiply
    268,832.99x = 403,307.82 × 81,839.63
  4. Step 4: Simplify right side
    268,832.99x = 33,006,560,748.37
  5. Step 5: Solve for x
    x = 33,006,560,748.37/268,832.99
  6. Step 6: Final answer
    x = 122,777.20

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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.