Home / 68,686-144,874

Finding the Third Proportional to 68,686 and 144,874

Calculator

Solution

The third proportional to 68,686 and 144,874 is: 305,571.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,686 : 144,874 = 144,874 : x
  2. Step 2: Convert to fraction form
    68,686/144,874 = 144,874/x
  3. Step 3: Cross multiply
    68,686x = 144,874 × 144,874
  4. Step 4: Simplify right side
    68,686x = 20,988,475,876
  5. Step 5: Solve for x
    x = 20,988,475,876/68,686
  6. Step 6: Final answer
    x = 305,571.38

Related Problems

Find third proportional to 34,343 and 72,437
Half scale
Find third proportional to 137,372 and 289,748
Double scale
Find third proportional to 68,688 and 144,878
Similar ratio
Find third proportional to 103,029 and 217,311
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.