Home / 121,512-161,748

Finding the Third Proportional to 121,512 and 161,748

Calculator

Solution

The third proportional to 121,512 and 161,748 is: 215,307.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,512 : 161,748 = 161,748 : x
  2. Step 2: Convert to fraction form
    121,512/161,748 = 161,748/x
  3. Step 3: Cross multiply
    121,512x = 161,748 × 161,748
  4. Step 4: Simplify right side
    121,512x = 26,162,415,504
  5. Step 5: Solve for x
    x = 26,162,415,504/121,512
  6. Step 6: Final answer
    x = 215,307.26

Related Problems

Find third proportional to 60,756 and 80,874
Half scale
Find third proportional to 243,024 and 323,496
Double scale
Find third proportional to 121,514 and 161,751
Similar ratio
Find third proportional to 182,268 and 242,622
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.