Home / 193,156.92-289,640.52-80,803.44

Finding the Fourth Proportional to 193,156.92, 289,640.52 and 80,803.44

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Solution

The fourth proportional to 193,156.92, 289,640.52 and 80,803.44 is: 121,165.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,156.92 : 289,640.52 = 80,803.44 : x
  2. Step 2: Convert to fraction form
    193,156.92/289,640.52 = 80,803.44/x
  3. Step 3: Cross multiply
    193,156.92x = 289,640.52 × 80,803.44
  4. Step 4: Simplify right side
    193,156.92x = 23,403,950,379.39
  5. Step 5: Solve for x
    x = 23,403,950,379.39/193,156.92
  6. Step 6: Final answer
    x = 121,165.48

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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.