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Finding the Fourth Proportional to 143,163.58, 214,583.34 and 72,894.46

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Solution

The fourth proportional to 143,163.58, 214,583.34 and 72,894.46 is: 109,259.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,163.58 : 214,583.34 = 72,894.46 : x
  2. Step 2: Convert to fraction form
    143,163.58/214,583.34 = 72,894.46/x
  3. Step 3: Cross multiply
    143,163.58x = 214,583.34 × 72,894.46
  4. Step 4: Simplify right side
    143,163.58x = 15,641,936,694.30
  5. Step 5: Solve for x
    x = 15,641,936,694.30/143,163.58
  6. Step 6: Final answer
    x = 109,259.19

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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.