Home / 86,268-137,724

Finding the Third Proportional to 86,268 and 137,724

Calculator

Solution

The third proportional to 86,268 and 137,724 is: 219,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,268 : 137,724 = 137,724 : x
  2. Step 2: Convert to fraction form
    86,268/137,724 = 137,724/x
  3. Step 3: Cross multiply
    86,268x = 137,724 × 137,724
  4. Step 4: Simplify right side
    86,268x = 18,967,900,176
  5. Step 5: Solve for x
    x = 18,967,900,176/86,268
  6. Step 6: Final answer
    x = 219,871.80

Related Problems

Find third proportional to 43,134 and 68,862
Half scale
Find third proportional to 172,536 and 275,448
Double scale
Find third proportional to 86,270 and 137,727
Similar ratio
Find third proportional to 129,402 and 206,586
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.