Home / 81,540-120,798

Finding the Third Proportional to 81,540 and 120,798

Calculator

Solution

The third proportional to 81,540 and 120,798 is: 178,957.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,540 : 120,798 = 120,798 : x
  2. Step 2: Convert to fraction form
    81,540/120,798 = 120,798/x
  3. Step 3: Cross multiply
    81,540x = 120,798 × 120,798
  4. Step 4: Simplify right side
    81,540x = 14,592,156,804
  5. Step 5: Solve for x
    x = 14,592,156,804/81,540
  6. Step 6: Final answer
    x = 178,957.04

Related Problems

Find third proportional to 40,770 and 60,399
Half scale
Find third proportional to 163,080 and 241,596
Double scale
Find third proportional to 81,542 and 120,801
Similar ratio
Find third proportional to 122,310 and 181,197
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.