Home / 64,707-138,411

Finding the Third Proportional to 64,707 and 138,411

Calculator

Solution

The third proportional to 64,707 and 138,411 is: 296,066.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,707 : 138,411 = 138,411 : x
  2. Step 2: Convert to fraction form
    64,707/138,411 = 138,411/x
  3. Step 3: Cross multiply
    64,707x = 138,411 × 138,411
  4. Step 4: Simplify right side
    64,707x = 19,157,604,921
  5. Step 5: Solve for x
    x = 19,157,604,921/64,707
  6. Step 6: Final answer
    x = 296,066.96

Related Problems

Find third proportional to 32,353.50 and 69,205.50
Half scale
Find third proportional to 129,414 and 276,822
Double scale
Find third proportional to 64,709 and 138,415
Similar ratio
Find third proportional to 97,060.50 and 207,616.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.