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Finding the Fourth Proportional to 133,682, 184,481.16 and 79,969.28

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Solution

The fourth proportional to 133,682, 184,481.16 and 79,969.28 is: 110,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,682 : 184,481.16 = 79,969.28 : x
  2. Step 2: Convert to fraction form
    133,682/184,481.16 = 79,969.28/x
  3. Step 3: Cross multiply
    133,682x = 184,481.16 × 79,969.28
  4. Step 4: Simplify right side
    133,682x = 14,752,825,538.76
  5. Step 5: Solve for x
    x = 14,752,825,538.76/133,682
  6. Step 6: Final answer
    x = 110,357.61

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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.