Home / 81,108-121,338

Finding the Third Proportional to 81,108 and 121,338

Calculator

Solution

The third proportional to 81,108 and 121,338 is: 181,522.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,108 : 121,338 = 121,338 : x
  2. Step 2: Convert to fraction form
    81,108/121,338 = 121,338/x
  3. Step 3: Cross multiply
    81,108x = 121,338 × 121,338
  4. Step 4: Simplify right side
    81,108x = 14,722,910,244
  5. Step 5: Solve for x
    x = 14,722,910,244/81,108
  6. Step 6: Final answer
    x = 181,522.29

Related Problems

Find third proportional to 40,554 and 60,669
Half scale
Find third proportional to 162,216 and 242,676
Double scale
Find third proportional to 81,110 and 121,341
Similar ratio
Find third proportional to 121,662 and 182,007
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.