Home / 64,998-139,878

Finding the Third Proportional to 64,998 and 139,878

Calculator

Solution

The third proportional to 64,998 and 139,878 is: 301,022.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,998 : 139,878 = 139,878 : x
  2. Step 2: Convert to fraction form
    64,998/139,878 = 139,878/x
  3. Step 3: Cross multiply
    64,998x = 139,878 × 139,878
  4. Step 4: Simplify right side
    64,998x = 19,565,854,884
  5. Step 5: Solve for x
    x = 19,565,854,884/64,998
  6. Step 6: Final answer
    x = 301,022.41

Related Problems

Find third proportional to 32,499 and 69,939
Half scale
Find third proportional to 129,996 and 279,756
Double scale
Find third proportional to 65,000 and 139,882
Similar ratio
Find third proportional to 97,497 and 209,817
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.