Home / 67,668-145,311

Finding the Third Proportional to 67,668 and 145,311

Calculator

Solution

The third proportional to 67,668 and 145,311 is: 312,042.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,668 : 145,311 = 145,311 : x
  2. Step 2: Convert to fraction form
    67,668/145,311 = 145,311/x
  3. Step 3: Cross multiply
    67,668x = 145,311 × 145,311
  4. Step 4: Simplify right side
    67,668x = 21,115,286,721
  5. Step 5: Solve for x
    x = 21,115,286,721/67,668
  6. Step 6: Final answer
    x = 312,042.42

Related Problems

Find third proportional to 33,834 and 72,655.50
Half scale
Find third proportional to 135,336 and 290,622
Double scale
Find third proportional to 67,670 and 145,315
Similar ratio
Find third proportional to 101,502 and 217,966.50
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.