Home / 64,813-139,742

Finding the Third Proportional to 64,813 and 139,742

Calculator

Solution

The third proportional to 64,813 and 139,742 is: 301,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,813 : 139,742 = 139,742 : x
  2. Step 2: Convert to fraction form
    64,813/139,742 = 139,742/x
  3. Step 3: Cross multiply
    64,813x = 139,742 × 139,742
  4. Step 4: Simplify right side
    64,813x = 19,527,826,564
  5. Step 5: Solve for x
    x = 19,527,826,564/64,813
  6. Step 6: Final answer
    x = 301,294.90

Related Problems

Find third proportional to 32,406.50 and 69,871
Half scale
Find third proportional to 129,626 and 279,484
Double scale
Find third proportional to 64,815 and 139,746
Similar ratio
Find third proportional to 97,219.50 and 209,613
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.