Home / 143,935.20-198,631.44-80,277.09

Finding the Fourth Proportional to 143,935.20, 198,631.44 and 80,277.09

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Solution

The fourth proportional to 143,935.20, 198,631.44 and 80,277.09 is: 110,782.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,935.20 : 198,631.44 = 80,277.09 : x
  2. Step 2: Convert to fraction form
    143,935.20/198,631.44 = 80,277.09/x
  3. Step 3: Cross multiply
    143,935.20x = 198,631.44 × 80,277.09
  4. Step 4: Simplify right side
    143,935.20x = 15,945,553,985.71
  5. Step 5: Solve for x
    x = 15,945,553,985.71/143,935.20
  6. Step 6: Final answer
    x = 110,782.87

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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.