Home / 143,441.92-197,961.76-79,791.68

Finding the Fourth Proportional to 143,441.92, 197,961.76 and 79,791.68

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Solution

The fourth proportional to 143,441.92, 197,961.76 and 79,791.68 is: 110,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,441.92 : 197,961.76 = 79,791.68 : x
  2. Step 2: Convert to fraction form
    143,441.92/197,961.76 = 79,791.68/x
  3. Step 3: Cross multiply
    143,441.92x = 197,961.76 × 79,791.68
  4. Step 4: Simplify right side
    143,441.92x = 15,795,701,406.16
  5. Step 5: Solve for x
    x = 15,795,701,406.16/143,441.92
  6. Step 6: Final answer
    x = 110,119.14

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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.