Home / 143,183.54-214,572.20-105,447.66

Finding the Fourth Proportional to 143,183.54, 214,572.20 and 105,447.66

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Solution

The fourth proportional to 143,183.54, 214,572.20 and 105,447.66 is: 158,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,183.54 : 214,572.20 = 105,447.66 : x
  2. Step 2: Convert to fraction form
    143,183.54/214,572.20 = 105,447.66/x
  3. Step 3: Cross multiply
    143,183.54x = 214,572.20 × 105,447.66
  4. Step 4: Simplify right side
    143,183.54x = 22,626,135,863.81
  5. Step 5: Solve for x
    x = 22,626,135,863.81/143,183.54
  6. Step 6: Final answer
    x = 158,021.91

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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.