Home / 72-110

Finding the Third Proportional to 72 and 110

Calculator

Solution

The third proportional to 72 and 110 is: 168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72 : 110 = 110 : x
  2. Step 2: Convert to fraction form
    72/110 = 110/x
  3. Step 3: Cross multiply
    72x = 110 × 110
  4. Step 4: Simplify right side
    72x = 12,100
  5. Step 5: Solve for x
    x = 12,100/72
  6. Step 6: Final answer
    x = 168.06

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.