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Finding the Fourth Proportional to 143,404.76, 214,657.84 and 92,736.56

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Solution

The fourth proportional to 143,404.76, 214,657.84 and 92,736.56 is: 138,814.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,404.76 : 214,657.84 = 92,736.56 : x
  2. Step 2: Convert to fraction form
    143,404.76/214,657.84 = 92,736.56/x
  3. Step 3: Cross multiply
    143,404.76x = 214,657.84 × 92,736.56
  4. Step 4: Simplify right side
    143,404.76x = 19,906,629,658.63
  5. Step 5: Solve for x
    x = 19,906,629,658.63/143,404.76
  6. Step 6: Final answer
    x = 138,814.29

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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.