Home / 143,943.82-215,943.41-55,190.41

Finding the Fourth Proportional to 143,943.82, 215,943.41 and 55,190.41

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Solution

The fourth proportional to 143,943.82, 215,943.41 and 55,190.41 is: 82,796.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,943.82 : 215,943.41 = 55,190.41 : x
  2. Step 2: Convert to fraction form
    143,943.82/215,943.41 = 55,190.41/x
  3. Step 3: Cross multiply
    143,943.82x = 215,943.41 × 55,190.41
  4. Step 4: Simplify right side
    143,943.82x = 11,918,004,753.98
  5. Step 5: Solve for x
    x = 11,918,004,753.98/143,943.82
  6. Step 6: Final answer
    x = 82,796.22

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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.