Home / 135,812-199,621

Finding the Third Proportional to 135,812 and 199,621

Calculator

Solution

The third proportional to 135,812 and 199,621 is: 293,409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,812 : 199,621 = 199,621 : x
  2. Step 2: Convert to fraction form
    135,812/199,621 = 199,621/x
  3. Step 3: Cross multiply
    135,812x = 199,621 × 199,621
  4. Step 4: Simplify right side
    135,812x = 39,848,543,641
  5. Step 5: Solve for x
    x = 39,848,543,641/135,812
  6. Step 6: Final answer
    x = 293,409.59

Related Problems

Find third proportional to 67,906 and 99,810.50
Half scale
Find third proportional to 271,624 and 399,242
Double scale
Find third proportional to 135,814 and 199,624
Similar ratio
Find third proportional to 203,718 and 299,431.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.