Home / 143,279.82-214,770.24-80,007.18

Finding the Fourth Proportional to 143,279.82, 214,770.24 and 80,007.18

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Solution

The fourth proportional to 143,279.82, 214,770.24 and 80,007.18 is: 119,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,279.82 : 214,770.24 = 80,007.18 : x
  2. Step 2: Convert to fraction form
    143,279.82/214,770.24 = 80,007.18/x
  3. Step 3: Cross multiply
    143,279.82x = 214,770.24 × 80,007.18
  4. Step 4: Simplify right side
    143,279.82x = 17,183,161,250.32
  5. Step 5: Solve for x
    x = 17,183,161,250.32/143,279.82
  6. Step 6: Final answer
    x = 119,927.30

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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.