Home / 87,540-135,790

Finding the Third Proportional to 87,540 and 135,790

Calculator

Solution

The third proportional to 87,540 and 135,790 is: 210,634.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540 : 135,790 = 135,790 : x
  2. Step 2: Convert to fraction form
    87,540/135,790 = 135,790/x
  3. Step 3: Cross multiply
    87,540x = 135,790 × 135,790
  4. Step 4: Simplify right side
    87,540x = 18,438,924,100
  5. Step 5: Solve for x
    x = 18,438,924,100/87,540
  6. Step 6: Final answer
    x = 210,634.27

Related Problems

Find third proportional to 43,770 and 67,895
Half scale
Find third proportional to 175,080 and 271,580
Double scale
Find third proportional to 87,542 and 135,793
Similar ratio
Find third proportional to 131,310 and 203,685
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.