Home / 193,092.81-289,639.45-80,711.54

Finding the Fourth Proportional to 193,092.81, 289,639.45 and 80,711.54

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Solution

The fourth proportional to 193,092.81, 289,639.45 and 80,711.54 is: 121,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,092.81 : 289,639.45 = 80,711.54 : x
  2. Step 2: Convert to fraction form
    193,092.81/289,639.45 = 80,711.54/x
  3. Step 3: Cross multiply
    193,092.81x = 289,639.45 × 80,711.54
  4. Step 4: Simplify right side
    193,092.81x = 23,377,245,339.09
  5. Step 5: Solve for x
    x = 23,377,245,339.09/193,092.81
  6. Step 6: Final answer
    x = 121,067.40

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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.