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Finding the Fourth Proportional to 201,354.21, 301,842.68 and 68,141.21

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Solution

The fourth proportional to 201,354.21, 301,842.68 and 68,141.21 is: 102,147.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,354.21 : 301,842.68 = 68,141.21 : x
  2. Step 2: Convert to fraction form
    201,354.21/301,842.68 = 68,141.21/x
  3. Step 3: Cross multiply
    201,354.21x = 301,842.68 × 68,141.21
  4. Step 4: Simplify right side
    201,354.21x = 20,567,923,594.92
  5. Step 5: Solve for x
    x = 20,567,923,594.92/201,354.21
  6. Step 6: Final answer
    x = 102,147.97

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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.