Home / 84,622-129,642

Finding the Third Proportional to 84,622 and 129,642

Calculator

Solution

The third proportional to 84,622 and 129,642 is: 198,613.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,622 : 129,642 = 129,642 : x
  2. Step 2: Convert to fraction form
    84,622/129,642 = 129,642/x
  3. Step 3: Cross multiply
    84,622x = 129,642 × 129,642
  4. Step 4: Simplify right side
    84,622x = 16,807,048,164
  5. Step 5: Solve for x
    x = 16,807,048,164/84,622
  6. Step 6: Final answer
    x = 198,613.22

Related Problems

Find third proportional to 42,311 and 64,821
Half scale
Find third proportional to 169,244 and 259,284
Double scale
Find third proportional to 84,624 and 129,645
Similar ratio
Find third proportional to 126,933 and 194,463
1.5x scale

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.