Home / 143,245.42-214,961.43-54,499.70

Finding the Fourth Proportional to 143,245.42, 214,961.43 and 54,499.70

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Solution

The fourth proportional to 143,245.42, 214,961.43 and 54,499.70 is: 81,785.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,245.42 : 214,961.43 = 54,499.70 : x
  2. Step 2: Convert to fraction form
    143,245.42/214,961.43 = 54,499.70/x
  3. Step 3: Cross multiply
    143,245.42x = 214,961.43 × 54,499.70
  4. Step 4: Simplify right side
    143,245.42x = 11,715,332,859.96
  5. Step 5: Solve for x
    x = 11,715,332,859.96/143,245.42
  6. Step 6: Final answer
    x = 81,785.04

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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.