Home / 67,515-145,418

Finding the Third Proportional to 67,515 and 145,418

Calculator

Solution

The third proportional to 67,515 and 145,418 is: 313,210.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,515 : 145,418 = 145,418 : x
  2. Step 2: Convert to fraction form
    67,515/145,418 = 145,418/x
  3. Step 3: Cross multiply
    67,515x = 145,418 × 145,418
  4. Step 4: Simplify right side
    67,515x = 21,146,394,724
  5. Step 5: Solve for x
    x = 21,146,394,724/67,515
  6. Step 6: Final answer
    x = 313,210.32

Related Problems

Find third proportional to 33,757.50 and 72,709
Half scale
Find third proportional to 135,030 and 290,836
Double scale
Find third proportional to 67,517 and 145,422
Similar ratio
Find third proportional to 101,272.50 and 218,127
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.