Home / 81,711-126,258

Finding the Third Proportional to 81,711 and 126,258

Calculator

Solution

The third proportional to 81,711 and 126,258 is: 195,091.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,711 : 126,258 = 126,258 : x
  2. Step 2: Convert to fraction form
    81,711/126,258 = 126,258/x
  3. Step 3: Cross multiply
    81,711x = 126,258 × 126,258
  4. Step 4: Simplify right side
    81,711x = 15,941,082,564
  5. Step 5: Solve for x
    x = 15,941,082,564/81,711
  6. Step 6: Final answer
    x = 195,091.02

Related Problems

Find third proportional to 40,855.50 and 63,129
Half scale
Find third proportional to 163,422 and 252,516
Double scale
Find third proportional to 81,713 and 126,261
Similar ratio
Find third proportional to 122,566.50 and 189,387
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.