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Finding the Fourth Proportional to 133,361.70, 184,044.11 and 72,928.77

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Solution

The fourth proportional to 133,361.70, 184,044.11 and 72,928.77 is: 100,644.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,361.70 : 184,044.11 = 72,928.77 : x
  2. Step 2: Convert to fraction form
    133,361.70/184,044.11 = 72,928.77/x
  3. Step 3: Cross multiply
    133,361.70x = 184,044.11 × 72,928.77
  4. Step 4: Simplify right side
    133,361.70x = 13,422,110,203.40
  5. Step 5: Solve for x
    x = 13,422,110,203.40/133,361.70
  6. Step 6: Final answer
    x = 100,644.41

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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.