Home / 81,205-177,165

Finding the Third Proportional to 81,205 and 177,165

Calculator

Solution

The third proportional to 81,205 and 177,165 is: 386,520.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,205 : 177,165 = 177,165 : x
  2. Step 2: Convert to fraction form
    81,205/177,165 = 177,165/x
  3. Step 3: Cross multiply
    81,205x = 177,165 × 177,165
  4. Step 4: Simplify right side
    81,205x = 31,387,437,225
  5. Step 5: Solve for x
    x = 31,387,437,225/81,205
  6. Step 6: Final answer
    x = 386,520.99

Related Problems

Find third proportional to 40,602.50 and 88,582.50
Half scale
Find third proportional to 162,410 and 354,330
Double scale
Find third proportional to 81,207 and 177,169
Similar ratio
Find third proportional to 121,807.50 and 265,747.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.