Home / 150,614.50-207,826.42-90,170.68

Finding the Fourth Proportional to 150,614.50, 207,826.42 and 90,170.68

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Solution

The fourth proportional to 150,614.50, 207,826.42 and 90,170.68 is: 124,422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,614.50 : 207,826.42 = 90,170.68 : x
  2. Step 2: Convert to fraction form
    150,614.50/207,826.42 = 90,170.68/x
  3. Step 3: Cross multiply
    150,614.50x = 207,826.42 × 90,170.68
  4. Step 4: Simplify right side
    150,614.50x = 18,739,849,613.37
  5. Step 5: Solve for x
    x = 18,739,849,613.37/150,614.50
  6. Step 6: Final answer
    x = 124,422.61

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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.