Home / 100,054-140,720

Finding the Third Proportional to 100,054 and 140,720

Calculator

Solution

The third proportional to 100,054 and 140,720 is: 197,914.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,054 : 140,720 = 140,720 : x
  2. Step 2: Convert to fraction form
    100,054/140,720 = 140,720/x
  3. Step 3: Cross multiply
    100,054x = 140,720 × 140,720
  4. Step 4: Simplify right side
    100,054x = 19,802,118,400
  5. Step 5: Solve for x
    x = 19,802,118,400/100,054
  6. Step 6: Final answer
    x = 197,914.31

Related Problems

Find third proportional to 50,027 and 70,360
Half scale
Find third proportional to 200,108 and 281,440
Double scale
Find third proportional to 100,056 and 140,723
Similar ratio
Find third proportional to 150,081 and 211,080
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.