Home / 70,568-98,912

Finding the Third Proportional to 70,568 and 98,912

Calculator

Solution

The third proportional to 70,568 and 98,912 is: 138,640.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,568 : 98,912 = 98,912 : x
  2. Step 2: Convert to fraction form
    70,568/98,912 = 98,912/x
  3. Step 3: Cross multiply
    70,568x = 98,912 × 98,912
  4. Step 4: Simplify right side
    70,568x = 9,783,583,744
  5. Step 5: Solve for x
    x = 9,783,583,744/70,568
  6. Step 6: Final answer
    x = 138,640.51

Related Problems

Find third proportional to 35,284 and 49,456
Half scale
Find third proportional to 141,136 and 197,824
Double scale
Find third proportional to 70,570 and 98,915
Similar ratio
Find third proportional to 105,852 and 148,368
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.