Home / 68,722-145,868

Finding the Third Proportional to 68,722 and 145,868

Calculator

Solution

The third proportional to 68,722 and 145,868 is: 309,616.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,722 : 145,868 = 145,868 : x
  2. Step 2: Convert to fraction form
    68,722/145,868 = 145,868/x
  3. Step 3: Cross multiply
    68,722x = 145,868 × 145,868
  4. Step 4: Simplify right side
    68,722x = 21,277,473,424
  5. Step 5: Solve for x
    x = 21,277,473,424/68,722
  6. Step 6: Final answer
    x = 309,616.62

Related Problems

Find third proportional to 34,361 and 72,934
Half scale
Find third proportional to 137,444 and 291,736
Double scale
Find third proportional to 68,724 and 145,872
Similar ratio
Find third proportional to 103,083 and 218,802
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.