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Finding the Fourth Proportional to 166,972.69, 250,400.72 and 100,424.71

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Solution

The fourth proportional to 166,972.69, 250,400.72 and 100,424.71 is: 150,601.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,972.69 : 250,400.72 = 100,424.71 : x
  2. Step 2: Convert to fraction form
    166,972.69/250,400.72 = 100,424.71/x
  3. Step 3: Cross multiply
    166,972.69x = 250,400.72 × 100,424.71
  4. Step 4: Simplify right side
    166,972.69x = 25,146,419,688.96
  5. Step 5: Solve for x
    x = 25,146,419,688.96/166,972.69
  6. Step 6: Final answer
    x = 150,601.99

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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.