Home / 140,571.45-193,992.03-80,147.81

Finding the Fourth Proportional to 140,571.45, 193,992.03 and 80,147.81

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Solution

The fourth proportional to 140,571.45, 193,992.03 and 80,147.81 is: 110,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,571.45 : 193,992.03 = 80,147.81 : x
  2. Step 2: Convert to fraction form
    140,571.45/193,992.03 = 80,147.81/x
  3. Step 3: Cross multiply
    140,571.45x = 193,992.03 × 80,147.81
  4. Step 4: Simplify right side
    140,571.45x = 15,548,036,846.93
  5. Step 5: Solve for x
    x = 15,548,036,846.93/140,571.45
  6. Step 6: Final answer
    x = 110,605.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.