Home / 86,212-129,422

Finding the Third Proportional to 86,212 and 129,422

Calculator

Solution

The third proportional to 86,212 and 129,422 is: 194,289.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,212 : 129,422 = 129,422 : x
  2. Step 2: Convert to fraction form
    86,212/129,422 = 129,422/x
  3. Step 3: Cross multiply
    86,212x = 129,422 × 129,422
  4. Step 4: Simplify right side
    86,212x = 16,750,054,084
  5. Step 5: Solve for x
    x = 16,750,054,084/86,212
  6. Step 6: Final answer
    x = 194,289.13

Related Problems

Find third proportional to 43,106 and 64,711
Half scale
Find third proportional to 172,424 and 258,844
Double scale
Find third proportional to 86,214 and 129,425
Similar ratio
Find third proportional to 129,318 and 194,133
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.