Home / 81,858-126,672

Finding the Third Proportional to 81,858 and 126,672

Calculator

Solution

The third proportional to 81,858 and 126,672 is: 196,019.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,858 : 126,672 = 126,672 : x
  2. Step 2: Convert to fraction form
    81,858/126,672 = 126,672/x
  3. Step 3: Cross multiply
    81,858x = 126,672 × 126,672
  4. Step 4: Simplify right side
    81,858x = 16,045,795,584
  5. Step 5: Solve for x
    x = 16,045,795,584/81,858
  6. Step 6: Final answer
    x = 196,019.88

Related Problems

Find third proportional to 40,929 and 63,336
Half scale
Find third proportional to 163,716 and 253,344
Double scale
Find third proportional to 81,860 and 126,675
Similar ratio
Find third proportional to 122,787 and 190,008
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.