Home / 68,931-142,173

Finding the Third Proportional to 68,931 and 142,173

Calculator

Solution

The third proportional to 68,931 and 142,173 is: 293,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,931 : 142,173 = 142,173 : x
  2. Step 2: Convert to fraction form
    68,931/142,173 = 142,173/x
  3. Step 3: Cross multiply
    68,931x = 142,173 × 142,173
  4. Step 4: Simplify right side
    68,931x = 20,213,161,929
  5. Step 5: Solve for x
    x = 20,213,161,929/68,931
  6. Step 6: Final answer
    x = 293,237.61

Related Problems

Find third proportional to 34,465.50 and 71,086.50
Half scale
Find third proportional to 137,862 and 284,346
Double scale
Find third proportional to 68,933 and 142,177
Similar ratio
Find third proportional to 103,396.50 and 213,259.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.