Home / 81,212-121,433

Finding the Third Proportional to 81,212 and 121,433

Calculator

Solution

The third proportional to 81,212 and 121,433 is: 181,573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,212 : 121,433 = 121,433 : x
  2. Step 2: Convert to fraction form
    81,212/121,433 = 121,433/x
  3. Step 3: Cross multiply
    81,212x = 121,433 × 121,433
  4. Step 4: Simplify right side
    81,212x = 14,745,973,489
  5. Step 5: Solve for x
    x = 14,745,973,489/81,212
  6. Step 6: Final answer
    x = 181,573.83

Related Problems

Find third proportional to 40,606 and 60,716.50
Half scale
Find third proportional to 162,424 and 242,866
Double scale
Find third proportional to 81,214 and 121,436
Similar ratio
Find third proportional to 121,818 and 182,149.50
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.