Home / 193,891.28-290,992.46-100,423.76

Finding the Fourth Proportional to 193,891.28, 290,992.46 and 100,423.76

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Solution

The fourth proportional to 193,891.28, 290,992.46 and 100,423.76 is: 150,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,891.28 : 290,992.46 = 100,423.76 : x
  2. Step 2: Convert to fraction form
    193,891.28/290,992.46 = 100,423.76/x
  3. Step 3: Cross multiply
    193,891.28x = 290,992.46 × 100,423.76
  4. Step 4: Simplify right side
    193,891.28x = 29,222,556,964.85
  5. Step 5: Solve for x
    x = 29,222,556,964.85/193,891.28
  6. Step 6: Final answer
    x = 150,716.20

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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.