Home / 126.20-173.76-106.76

Finding the Fourth Proportional to 126.20, 173.76 and 106.76

Calculator

Solution

The fourth proportional to 126.20, 173.76 and 106.76 is: 146.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.20 : 173.76 = 106.76 : x
  2. Step 2: Convert to fraction form
    126.20/173.76 = 106.76/x
  3. Step 3: Cross multiply
    126.20x = 173.76 × 106.76
  4. Step 4: Simplify right side
    126.20x = 18,550.62
  5. Step 5: Solve for x
    x = 18,550.62/126.20
  6. Step 6: Final answer
    x = 146.99

Related Problems

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.