Home / 68,420-142,216

Finding the Third Proportional to 68,420 and 142,216

Calculator

Solution

The third proportional to 68,420 and 142,216 is: 295,606.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,420 : 142,216 = 142,216 : x
  2. Step 2: Convert to fraction form
    68,420/142,216 = 142,216/x
  3. Step 3: Cross multiply
    68,420x = 142,216 × 142,216
  4. Step 4: Simplify right side
    68,420x = 20,225,390,656
  5. Step 5: Solve for x
    x = 20,225,390,656/68,420
  6. Step 6: Final answer
    x = 295,606.41

Related Problems

Find third proportional to 34,210 and 71,108
Half scale
Find third proportional to 136,840 and 284,432
Double scale
Find third proportional to 68,422 and 142,220
Similar ratio
Find third proportional to 102,630 and 213,324
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.