Home / 143,369.49-214,708.42-113,279.11

Finding the Fourth Proportional to 143,369.49, 214,708.42 and 113,279.11

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Solution

The fourth proportional to 143,369.49, 214,708.42 and 113,279.11 is: 169,645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,369.49 : 214,708.42 = 113,279.11 : x
  2. Step 2: Convert to fraction form
    143,369.49/214,708.42 = 113,279.11/x
  3. Step 3: Cross multiply
    143,369.49x = 214,708.42 × 113,279.11
  4. Step 4: Simplify right side
    143,369.49x = 24,321,978,331.93
  5. Step 5: Solve for x
    x = 24,321,978,331.93/143,369.49
  6. Step 6: Final answer
    x = 169,645.42

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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.