Home / 62.75-109

Finding the Third Proportional to 62.75 and 109

Calculator

Solution

The third proportional to 62.75 and 109 is: 189.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.75 : 109 = 109 : x
  2. Step 2: Convert to fraction form
    62.75/109 = 109/x
  3. Step 3: Cross multiply
    62.75x = 109 × 109
  4. Step 4: Simplify right side
    62.75x = 11,881
  5. Step 5: Solve for x
    x = 11,881/62.75
  6. Step 6: Final answer
    x = 189.34

Related Problems

Find third proportional to 31.38 and 54.50
Half scale
Find third proportional to 125.50 and 218
Double scale
Find third proportional to 65 and 112
Similar ratio
Find third proportional to 94.13 and 163.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.