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Finding the Fourth Proportional to 143,773.91, 215,756.84 and 50,279.66

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Solution

The fourth proportional to 143,773.91, 215,756.84 and 50,279.66 is: 75,453.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,773.91 : 215,756.84 = 50,279.66 : x
  2. Step 2: Convert to fraction form
    143,773.91/215,756.84 = 50,279.66/x
  3. Step 3: Cross multiply
    143,773.91x = 215,756.84 × 50,279.66
  4. Step 4: Simplify right side
    143,773.91x = 10,848,179,479.09
  5. Step 5: Solve for x
    x = 10,848,179,479.09/143,773.91
  6. Step 6: Final answer
    x = 75,453.05

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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.