Home / 143,935.92-198,632.64-80,277.84

Finding the Fourth Proportional to 143,935.92, 198,632.64 and 80,277.84

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Solution

The fourth proportional to 143,935.92, 198,632.64 and 80,277.84 is: 110,784.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,935.92 : 198,632.64 = 80,277.84 : x
  2. Step 2: Convert to fraction form
    143,935.92/198,632.64 = 80,277.84/x
  3. Step 3: Cross multiply
    143,935.92x = 198,632.64 × 80,277.84
  4. Step 4: Simplify right side
    143,935.92x = 15,945,799,292.70
  5. Step 5: Solve for x
    x = 15,945,799,292.70/143,935.92
  6. Step 6: Final answer
    x = 110,784.02

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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.