Home / 150,138.27-207,181.87-82,141.70

Finding the Fourth Proportional to 150,138.27, 207,181.87 and 82,141.70

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Solution

The fourth proportional to 150,138.27, 207,181.87 and 82,141.70 is: 113,350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,138.27 : 207,181.87 = 82,141.70 : x
  2. Step 2: Convert to fraction form
    150,138.27/207,181.87 = 82,141.70/x
  3. Step 3: Cross multiply
    150,138.27x = 207,181.87 × 82,141.70
  4. Step 4: Simplify right side
    150,138.27x = 17,018,269,769.72
  5. Step 5: Solve for x
    x = 17,018,269,769.72/150,138.27
  6. Step 6: Final answer
    x = 113,350.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.