Home / 178,936.78-268,183.59-90,141.85

Finding the Fourth Proportional to 178,936.78, 268,183.59 and 90,141.85

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Solution

The fourth proportional to 178,936.78, 268,183.59 and 90,141.85 is: 135,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,936.78 : 268,183.59 = 90,141.85 : x
  2. Step 2: Convert to fraction form
    178,936.78/268,183.59 = 90,141.85/x
  3. Step 3: Cross multiply
    178,936.78x = 268,183.59 × 90,141.85
  4. Step 4: Simplify right side
    178,936.78x = 24,174,564,942.24
  5. Step 5: Solve for x
    x = 24,174,564,942.24/178,936.78
  6. Step 6: Final answer
    x = 135,101.15

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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.