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Finding the Fourth Proportional to 143,622, 215,473.98 and 48,872.94

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Solution

The fourth proportional to 143,622, 215,473.98 and 48,872.94 is: 73,323.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,622 : 215,473.98 = 48,872.94 : x
  2. Step 2: Convert to fraction form
    143,622/215,473.98 = 48,872.94/x
  3. Step 3: Cross multiply
    143,622x = 215,473.98 × 48,872.94
  4. Step 4: Simplify right side
    143,622x = 10,530,846,896.10
  5. Step 5: Solve for x
    x = 10,530,846,896.10/143,622
  6. Step 6: Final answer
    x = 73,323.36

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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.