Home / 87,696-136,920

Finding the Third Proportional to 87,696 and 136,920

Calculator

Solution

The third proportional to 87,696 and 136,920 is: 213,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,696 : 136,920 = 136,920 : x
  2. Step 2: Convert to fraction form
    87,696/136,920 = 136,920/x
  3. Step 3: Cross multiply
    87,696x = 136,920 × 136,920
  4. Step 4: Simplify right side
    87,696x = 18,747,086,400
  5. Step 5: Solve for x
    x = 18,747,086,400/87,696
  6. Step 6: Final answer
    x = 213,773.56

Related Problems

Find third proportional to 43,848 and 68,460
Half scale
Find third proportional to 175,392 and 273,840
Double scale
Find third proportional to 87,698 and 136,923
Similar ratio
Find third proportional to 131,544 and 205,380
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.