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Finding the Fourth Proportional to 160.00, 239.95 and 68.60

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Solution

The fourth proportional to 160.00, 239.95 and 68.60 is: 102.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.00 : 239.95 = 68.60 : x
  2. Step 2: Convert to fraction form
    160.00/239.95 = 68.60/x
  3. Step 3: Cross multiply
    160.00x = 239.95 × 68.60
  4. Step 4: Simplify right side
    160.00x = 16,460.87
  5. Step 5: Solve for x
    x = 16,460.87/160.00
  6. Step 6: Final answer
    x = 102.88

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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.