Home / 193,481.28-290,147.20-75,136.64

Finding the Fourth Proportional to 193,481.28, 290,147.20 and 75,136.64

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Solution

The fourth proportional to 193,481.28, 290,147.20 and 75,136.64 is: 112,675.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,481.28 : 290,147.20 = 75,136.64 : x
  2. Step 2: Convert to fraction form
    193,481.28/290,147.20 = 75,136.64/x
  3. Step 3: Cross multiply
    193,481.28x = 290,147.20 × 75,136.64
  4. Step 4: Simplify right side
    193,481.28x = 21,800,684,074.83
  5. Step 5: Solve for x
    x = 21,800,684,074.83/193,481.28
  6. Step 6: Final answer
    x = 112,675.93

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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.