Home / 71.19-97.19

Finding the Third Proportional to 71.19 and 97.19

Calculator

Solution

The third proportional to 71.19 and 97.19 is: 132.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71.19 : 97.19 = 97.19 : x
  2. Step 2: Convert to fraction form
    71.19/97.19 = 97.19/x
  3. Step 3: Cross multiply
    71.19x = 97.19 × 97.19
  4. Step 4: Simplify right side
    71.19x = 9,445.41
  5. Step 5: Solve for x
    x = 9,445.41/71.19
  6. Step 6: Final answer
    x = 132.68

Related Problems

Find third proportional to 35.59 and 48.59
Half scale
Find third proportional to 142.38 and 194.38
Double scale
Find third proportional to 73 and 100
Similar ratio
Find third proportional to 106.78 and 145.78
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.