Home / 143,049.09-197,362.13-82,611.75

Finding the Fourth Proportional to 143,049.09, 197,362.13 and 82,611.75

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Solution

The fourth proportional to 143,049.09, 197,362.13 and 82,611.75 is: 113,977.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,049.09 : 197,362.13 = 82,611.75 : x
  2. Step 2: Convert to fraction form
    143,049.09/197,362.13 = 82,611.75/x
  3. Step 3: Cross multiply
    143,049.09x = 197,362.13 × 82,611.75
  4. Step 4: Simplify right side
    143,049.09x = 16,304,430,529.97
  5. Step 5: Solve for x
    x = 16,304,430,529.97/143,049.09
  6. Step 6: Final answer
    x = 113,977.87

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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.