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Finding the Fourth Proportional to 159,548.82, 239,322.96 and 74,112.96

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Solution

The fourth proportional to 159,548.82, 239,322.96 and 74,112.96 is: 111,169.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,548.82 : 239,322.96 = 74,112.96 : x
  2. Step 2: Convert to fraction form
    159,548.82/239,322.96 = 74,112.96/x
  3. Step 3: Cross multiply
    159,548.82x = 239,322.96 × 74,112.96
  4. Step 4: Simplify right side
    159,548.82x = 17,736,932,961.56
  5. Step 5: Solve for x
    x = 17,736,932,961.56/159,548.82
  6. Step 6: Final answer
    x = 111,169.31

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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.