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Finding the Fourth Proportional to 143,299.72, 214,969.02 and 49,793.32

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Solution

The fourth proportional to 143,299.72, 214,969.02 and 49,793.32 is: 74,696.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,299.72 : 214,969.02 = 49,793.32 : x
  2. Step 2: Convert to fraction form
    143,299.72/214,969.02 = 49,793.32/x
  3. Step 3: Cross multiply
    143,299.72x = 214,969.02 × 49,793.32
  4. Step 4: Simplify right side
    143,299.72x = 10,704,021,202.95
  5. Step 5: Solve for x
    x = 10,704,021,202.95/143,299.72
  6. Step 6: Final answer
    x = 74,696.73

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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.