Home / 80,905-126,638

Finding the Third Proportional to 80,905 and 126,638

Calculator

Solution

The third proportional to 80,905 and 126,638 is: 198,222.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,905 : 126,638 = 126,638 : x
  2. Step 2: Convert to fraction form
    80,905/126,638 = 126,638/x
  3. Step 3: Cross multiply
    80,905x = 126,638 × 126,638
  4. Step 4: Simplify right side
    80,905x = 16,037,183,044
  5. Step 5: Solve for x
    x = 16,037,183,044/80,905
  6. Step 6: Final answer
    x = 198,222.40

Related Problems

Find third proportional to 40,452.50 and 63,319
Half scale
Find third proportional to 161,810 and 253,276
Double scale
Find third proportional to 80,907 and 126,641
Similar ratio
Find third proportional to 121,357.50 and 189,957
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.