Home / 143,293.94-197,729.92-82,855.43

Finding the Fourth Proportional to 143,293.94, 197,729.92 and 82,855.43

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Solution

The fourth proportional to 143,293.94, 197,729.92 and 82,855.43 is: 114,331.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,293.94 : 197,729.92 = 82,855.43 : x
  2. Step 2: Convert to fraction form
    143,293.94/197,729.92 = 82,855.43/x
  3. Step 3: Cross multiply
    143,293.94x = 197,729.92 × 82,855.43
  4. Step 4: Simplify right side
    143,293.94x = 16,382,997,401.87
  5. Step 5: Solve for x
    x = 16,382,997,401.87/143,293.94
  6. Step 6: Final answer
    x = 114,331.41

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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.