Home / 63,682-138,420

Finding the Third Proportional to 63,682 and 138,420

Calculator

Solution

The third proportional to 63,682 and 138,420 is: 300,871.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,682 : 138,420 = 138,420 : x
  2. Step 2: Convert to fraction form
    63,682/138,420 = 138,420/x
  3. Step 3: Cross multiply
    63,682x = 138,420 × 138,420
  4. Step 4: Simplify right side
    63,682x = 19,160,096,400
  5. Step 5: Solve for x
    x = 19,160,096,400/63,682
  6. Step 6: Final answer
    x = 300,871.46

Related Problems

Find third proportional to 31,841 and 69,210
Half scale
Find third proportional to 127,364 and 276,840
Double scale
Find third proportional to 63,684 and 138,424
Similar ratio
Find third proportional to 95,523 and 207,630
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.