Home / 121,498-171,019

Finding the Third Proportional to 121,498 and 171,019

Calculator

Solution

The third proportional to 121,498 and 171,019 is: 240,724.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,498 : 171,019 = 171,019 : x
  2. Step 2: Convert to fraction form
    121,498/171,019 = 171,019/x
  3. Step 3: Cross multiply
    121,498x = 171,019 × 171,019
  4. Step 4: Simplify right side
    121,498x = 29,247,498,361
  5. Step 5: Solve for x
    x = 29,247,498,361/121,498
  6. Step 6: Final answer
    x = 240,724.11

Related Problems

Find third proportional to 60,749 and 85,509.50
Half scale
Find third proportional to 242,996 and 342,038
Double scale
Find third proportional to 121,500 and 171,022
Similar ratio
Find third proportional to 182,247 and 256,528.50
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.