Home / 150,511.88-207,738.80-90,096

Finding the Fourth Proportional to 150,511.88, 207,738.80 and 90,096

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Solution

The fourth proportional to 150,511.88, 207,738.80 and 90,096 is: 124,351.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,511.88 : 207,738.80 = 90,096 : x
  2. Step 2: Convert to fraction form
    150,511.88/207,738.80 = 90,096/x
  3. Step 3: Cross multiply
    150,511.88x = 207,738.80 × 90,096
  4. Step 4: Simplify right side
    150,511.88x = 18,716,434,474.32
  5. Step 5: Solve for x
    x = 18,716,434,474.32/150,511.88
  6. Step 6: Final answer
    x = 124,351.88

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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.