Home / 143,976.05-215,949.48-38,805.65

Finding the Fourth Proportional to 143,976.05, 215,949.48 and 38,805.65

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Solution

The fourth proportional to 143,976.05, 215,949.48 and 38,805.65 is: 58,204.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,976.05 : 215,949.48 = 38,805.65 : x
  2. Step 2: Convert to fraction form
    143,976.05/215,949.48 = 38,805.65/x
  3. Step 3: Cross multiply
    143,976.05x = 215,949.48 × 38,805.65
  4. Step 4: Simplify right side
    143,976.05x = 8,380,058,858.81
  5. Step 5: Solve for x
    x = 8,380,058,858.81/143,976.05
  6. Step 6: Final answer
    x = 58,204.54

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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.