Home / 121,680-162,765

Finding the Third Proportional to 121,680 and 162,765

Calculator

Solution

The third proportional to 121,680 and 162,765 is: 217,722.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,680 : 162,765 = 162,765 : x
  2. Step 2: Convert to fraction form
    121,680/162,765 = 162,765/x
  3. Step 3: Cross multiply
    121,680x = 162,765 × 162,765
  4. Step 4: Simplify right side
    121,680x = 26,492,445,225
  5. Step 5: Solve for x
    x = 26,492,445,225/121,680
  6. Step 6: Final answer
    x = 217,722.27

Related Problems

Find third proportional to 60,840 and 81,382.50
Half scale
Find third proportional to 243,360 and 325,530
Double scale
Find third proportional to 121,682 and 162,768
Similar ratio
Find third proportional to 182,520 and 244,147.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.