Home / 150,315.24-207,388.26-100,022.76

Finding the Fourth Proportional to 150,315.24, 207,388.26 and 100,022.76

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Solution

The fourth proportional to 150,315.24, 207,388.26 and 100,022.76 is: 138,000.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,315.24 : 207,388.26 = 100,022.76 : x
  2. Step 2: Convert to fraction form
    150,315.24/207,388.26 = 100,022.76/x
  3. Step 3: Cross multiply
    150,315.24x = 207,388.26 × 100,022.76
  4. Step 4: Simplify right side
    150,315.24x = 20,743,546,156.80
  5. Step 5: Solve for x
    x = 20,743,546,156.80/150,315.24
  6. Step 6: Final answer
    x = 138,000.29

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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.