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Finding the Fourth Proportional to 159,936, 239,904 and 49,128

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Solution

The fourth proportional to 159,936, 239,904 and 49,128 is: 73,692

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,936 : 239,904 = 49,128 : x
  2. Step 2: Convert to fraction form
    159,936/239,904 = 49,128/x
  3. Step 3: Cross multiply
    159,936x = 239,904 × 49,128
  4. Step 4: Simplify right side
    159,936x = 11,786,003,712
  5. Step 5: Solve for x
    x = 11,786,003,712/159,936
  6. Step 6: Final answer
    x = 73,692

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.