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Finding the Fourth Proportional to 133,858.28, 184,728.42 and 74,241

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Solution

The fourth proportional to 133,858.28, 184,728.42 and 74,241 is: 102,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,858.28 : 184,728.42 = 74,241 : x
  2. Step 2: Convert to fraction form
    133,858.28/184,728.42 = 74,241/x
  3. Step 3: Cross multiply
    133,858.28x = 184,728.42 × 74,241
  4. Step 4: Simplify right side
    133,858.28x = 13,714,422,629.22
  5. Step 5: Solve for x
    x = 13,714,422,629.22/133,858.28
  6. Step 6: Final answer
    x = 102,454.79

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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.