Home / 90,705-136,406

Finding the Third Proportional to 90,705 and 136,406

Calculator

Solution

The third proportional to 90,705 and 136,406 is: 205,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,705 : 136,406 = 136,406 : x
  2. Step 2: Convert to fraction form
    90,705/136,406 = 136,406/x
  3. Step 3: Cross multiply
    90,705x = 136,406 × 136,406
  4. Step 4: Simplify right side
    90,705x = 18,606,596,836
  5. Step 5: Solve for x
    x = 18,606,596,836/90,705
  6. Step 6: Final answer
    x = 205,133.09

Related Problems

Find third proportional to 45,352.50 and 68,203
Half scale
Find third proportional to 181,410 and 272,812
Double scale
Find third proportional to 90,707 and 136,409
Similar ratio
Find third proportional to 136,057.50 and 204,609
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.