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Finding the Fourth Proportional to 133,684.88, 184,485.13 and 79,972.16

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Solution

The fourth proportional to 133,684.88, 184,485.13 and 79,972.16 is: 110,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,684.88 : 184,485.13 = 79,972.16 : x
  2. Step 2: Convert to fraction form
    133,684.88/184,485.13 = 79,972.16/x
  3. Step 3: Cross multiply
    133,684.88x = 184,485.13 × 79,972.16
  4. Step 4: Simplify right side
    133,684.88x = 14,753,673,211.62
  5. Step 5: Solve for x
    x = 14,753,673,211.62/133,684.88
  6. Step 6: Final answer
    x = 110,361.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.