Home / 120,420-177,162

Finding the Third Proportional to 120,420 and 177,162

Calculator

Solution

The third proportional to 120,420 and 177,162 is: 260,640.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,420 : 177,162 = 177,162 : x
  2. Step 2: Convert to fraction form
    120,420/177,162 = 177,162/x
  3. Step 3: Cross multiply
    120,420x = 177,162 × 177,162
  4. Step 4: Simplify right side
    120,420x = 31,386,374,244
  5. Step 5: Solve for x
    x = 31,386,374,244/120,420
  6. Step 6: Final answer
    x = 260,640.88

Related Problems

Find third proportional to 60,210 and 88,581
Half scale
Find third proportional to 240,840 and 354,324
Double scale
Find third proportional to 120,422 and 177,165
Similar ratio
Find third proportional to 180,630 and 265,743
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.