Home / 193,828.68-290,855.82-81,500.76

Finding the Fourth Proportional to 193,828.68, 290,855.82 and 81,500.76

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Solution

The fourth proportional to 193,828.68, 290,855.82 and 81,500.76 is: 122,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,828.68 : 290,855.82 = 81,500.76 : x
  2. Step 2: Convert to fraction form
    193,828.68/290,855.82 = 81,500.76/x
  3. Step 3: Cross multiply
    193,828.68x = 290,855.82 × 81,500.76
  4. Step 4: Simplify right side
    193,828.68x = 23,704,970,380.42
  5. Step 5: Solve for x
    x = 23,704,970,380.42/193,828.68
  6. Step 6: Final answer
    x = 122,298.57

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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.