Home / 64,689-140,768

Finding the Third Proportional to 64,689 and 140,768

Calculator

Solution

The third proportional to 64,689 and 140,768 is: 306,321.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,689 : 140,768 = 140,768 : x
  2. Step 2: Convert to fraction form
    64,689/140,768 = 140,768/x
  3. Step 3: Cross multiply
    64,689x = 140,768 × 140,768
  4. Step 4: Simplify right side
    64,689x = 19,815,629,824
  5. Step 5: Solve for x
    x = 19,815,629,824/64,689
  6. Step 6: Final answer
    x = 306,321.47

Related Problems

Find third proportional to 32,344.50 and 70,384
Half scale
Find third proportional to 129,378 and 281,536
Double scale
Find third proportional to 64,691 and 140,772
Similar ratio
Find third proportional to 97,033.50 and 211,152
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.