Home / 143,220.52-214,778.94-68,337.64

Finding the Fourth Proportional to 143,220.52, 214,778.94 and 68,337.64

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Solution

The fourth proportional to 143,220.52, 214,778.94 and 68,337.64 is: 102,481.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,220.52 : 214,778.94 = 68,337.64 : x
  2. Step 2: Convert to fraction form
    143,220.52/214,778.94 = 68,337.64/x
  3. Step 3: Cross multiply
    143,220.52x = 214,778.94 × 68,337.64
  4. Step 4: Simplify right side
    143,220.52x = 14,677,485,881.30
  5. Step 5: Solve for x
    x = 14,677,485,881.30/143,220.52
  6. Step 6: Final answer
    x = 102,481.72

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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.