Home / 86,680-129,448

Finding the Third Proportional to 86,680 and 129,448

Calculator

Solution

The third proportional to 86,680 and 129,448 is: 193,317.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,680 : 129,448 = 129,448 : x
  2. Step 2: Convert to fraction form
    86,680/129,448 = 129,448/x
  3. Step 3: Cross multiply
    86,680x = 129,448 × 129,448
  4. Step 4: Simplify right side
    86,680x = 16,756,784,704
  5. Step 5: Solve for x
    x = 16,756,784,704/86,680
  6. Step 6: Final answer
    x = 193,317.77

Related Problems

Find third proportional to 43,340 and 64,724
Half scale
Find third proportional to 173,360 and 258,896
Double scale
Find third proportional to 86,682 and 129,451
Similar ratio
Find third proportional to 130,020 and 194,172
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.