Home / 63,864-138,918

Finding the Third Proportional to 63,864 and 138,918

Calculator

Solution

The third proportional to 63,864 and 138,918 is: 302,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,864 : 138,918 = 138,918 : x
  2. Step 2: Convert to fraction form
    63,864/138,918 = 138,918/x
  3. Step 3: Cross multiply
    63,864x = 138,918 × 138,918
  4. Step 4: Simplify right side
    63,864x = 19,298,210,724
  5. Step 5: Solve for x
    x = 19,298,210,724/63,864
  6. Step 6: Final answer
    x = 302,176.67

Related Problems

Find third proportional to 31,932 and 69,459
Half scale
Find third proportional to 127,728 and 277,836
Double scale
Find third proportional to 63,866 and 138,922
Similar ratio
Find third proportional to 95,796 and 208,377
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.