Home / 71,419-136,357

Finding the Third Proportional to 71,419 and 136,357

Calculator

Solution

The third proportional to 71,419 and 136,357 is: 260,340.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,419 : 136,357 = 136,357 : x
  2. Step 2: Convert to fraction form
    71,419/136,357 = 136,357/x
  3. Step 3: Cross multiply
    71,419x = 136,357 × 136,357
  4. Step 4: Simplify right side
    71,419x = 18,593,231,449
  5. Step 5: Solve for x
    x = 18,593,231,449/71,419
  6. Step 6: Final answer
    x = 260,340.13

Related Problems

Find third proportional to 35,709.50 and 68,178.50
Half scale
Find third proportional to 142,838 and 272,714
Double scale
Find third proportional to 71,421 and 136,361
Similar ratio
Find third proportional to 107,128.50 and 204,535.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.