Home / 143,816.32-215,791.36-55,040.56

Finding the Fourth Proportional to 143,816.32, 215,791.36 and 55,040.56

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Solution

The fourth proportional to 143,816.32, 215,791.36 and 55,040.56 is: 82,586.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,816.32 : 215,791.36 = 55,040.56 : x
  2. Step 2: Convert to fraction form
    143,816.32/215,791.36 = 55,040.56/x
  3. Step 3: Cross multiply
    143,816.32x = 215,791.36 × 55,040.56
  4. Step 4: Simplify right side
    143,816.32x = 11,877,277,297.56
  5. Step 5: Solve for x
    x = 11,877,277,297.56/143,816.32
  6. Step 6: Final answer
    x = 82,586.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.