Home / 64,629-136,709

Finding the Third Proportional to 64,629 and 136,709

Calculator

Solution

The third proportional to 64,629 and 136,709 is: 289,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,629 : 136,709 = 136,709 : x
  2. Step 2: Convert to fraction form
    64,629/136,709 = 136,709/x
  3. Step 3: Cross multiply
    64,629x = 136,709 × 136,709
  4. Step 4: Simplify right side
    64,629x = 18,689,350,681
  5. Step 5: Solve for x
    x = 18,689,350,681/64,629
  6. Step 6: Final answer
    x = 289,179.02

Related Problems

Find third proportional to 32,314.50 and 68,354.50
Half scale
Find third proportional to 129,258 and 273,418
Double scale
Find third proportional to 64,631 and 136,713
Similar ratio
Find third proportional to 96,943.50 and 205,063.50
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.