Home / 61,560-135,270

Finding the Third Proportional to 61,560 and 135,270

Calculator

Solution

The third proportional to 61,560 and 135,270 is: 297,238.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,560 : 135,270 = 135,270 : x
  2. Step 2: Convert to fraction form
    61,560/135,270 = 135,270/x
  3. Step 3: Cross multiply
    61,560x = 135,270 × 135,270
  4. Step 4: Simplify right side
    61,560x = 18,297,972,900
  5. Step 5: Solve for x
    x = 18,297,972,900/61,560
  6. Step 6: Final answer
    x = 297,238.03

Related Problems

Find third proportional to 30,780 and 67,635
Half scale
Find third proportional to 123,120 and 270,540
Double scale
Find third proportional to 61,562 and 135,274
Similar ratio
Find third proportional to 92,340 and 202,905
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.