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Finding the Fourth Proportional to 103,958.90, 155,914.82 and 47,744.97

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Solution

The fourth proportional to 103,958.90, 155,914.82 and 47,744.97 is: 71,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,958.90 : 155,914.82 = 47,744.97 : x
  2. Step 2: Convert to fraction form
    103,958.90/155,914.82 = 47,744.97/x
  3. Step 3: Cross multiply
    103,958.90x = 155,914.82 × 47,744.97
  4. Step 4: Simplify right side
    103,958.90x = 7,444,147,385.16
  5. Step 5: Solve for x
    x = 7,444,147,385.16/103,958.90
  6. Step 6: Final answer
    x = 71,606.64

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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.