Home / 67,489-145,345

Finding the Third Proportional to 67,489 and 145,345

Calculator

Solution

The third proportional to 67,489 and 145,345 is: 313,016.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,489 : 145,345 = 145,345 : x
  2. Step 2: Convert to fraction form
    67,489/145,345 = 145,345/x
  3. Step 3: Cross multiply
    67,489x = 145,345 × 145,345
  4. Step 4: Simplify right side
    67,489x = 21,125,169,025
  5. Step 5: Solve for x
    x = 21,125,169,025/67,489
  6. Step 6: Final answer
    x = 313,016.48

Related Problems

Find third proportional to 33,744.50 and 72,672.50
Half scale
Find third proportional to 134,978 and 290,690
Double scale
Find third proportional to 67,491 and 145,349
Similar ratio
Find third proportional to 101,233.50 and 218,017.50
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.