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Finding the Fourth Proportional to 103,557.96, 155,304 and 33,420.96

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Solution

The fourth proportional to 103,557.96, 155,304 and 33,420.96 is: 50,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,557.96 : 155,304 = 33,420.96 : x
  2. Step 2: Convert to fraction form
    103,557.96/155,304 = 33,420.96/x
  3. Step 3: Cross multiply
    103,557.96x = 155,304 × 33,420.96
  4. Step 4: Simplify right side
    103,557.96x = 5,190,408,771.84
  5. Step 5: Solve for x
    x = 5,190,408,771.84/103,557.96
  6. Step 6: Final answer
    x = 50,120.81

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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.