Home / 81,872-126,804

Finding the Third Proportional to 81,872 and 126,804

Calculator

Solution

The third proportional to 81,872 and 126,804 is: 196,395.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,872 : 126,804 = 126,804 : x
  2. Step 2: Convert to fraction form
    81,872/126,804 = 126,804/x
  3. Step 3: Cross multiply
    81,872x = 126,804 × 126,804
  4. Step 4: Simplify right side
    81,872x = 16,079,254,416
  5. Step 5: Solve for x
    x = 16,079,254,416/81,872
  6. Step 6: Final answer
    x = 196,395.04

Related Problems

Find third proportional to 40,936 and 63,402
Half scale
Find third proportional to 163,744 and 253,608
Double scale
Find third proportional to 81,874 and 126,807
Similar ratio
Find third proportional to 122,808 and 190,206
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.