Home / 80,610-172,872

Finding the Third Proportional to 80,610 and 172,872

Calculator

Solution

The third proportional to 80,610 and 172,872 is: 370,732.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,610 : 172,872 = 172,872 : x
  2. Step 2: Convert to fraction form
    80,610/172,872 = 172,872/x
  3. Step 3: Cross multiply
    80,610x = 172,872 × 172,872
  4. Step 4: Simplify right side
    80,610x = 29,884,728,384
  5. Step 5: Solve for x
    x = 29,884,728,384/80,610
  6. Step 6: Final answer
    x = 370,732.27

Related Problems

Find third proportional to 40,305 and 86,436
Half scale
Find third proportional to 161,220 and 345,744
Double scale
Find third proportional to 80,612 and 172,876
Similar ratio
Find third proportional to 120,915 and 259,308
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.