Home / 81,745-173,879

Finding the Third Proportional to 81,745 and 173,879

Calculator

Solution

The third proportional to 81,745 and 173,879 is: 369,856.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,745 : 173,879 = 173,879 : x
  2. Step 2: Convert to fraction form
    81,745/173,879 = 173,879/x
  3. Step 3: Cross multiply
    81,745x = 173,879 × 173,879
  4. Step 4: Simplify right side
    81,745x = 30,233,906,641
  5. Step 5: Solve for x
    x = 30,233,906,641/81,745
  6. Step 6: Final answer
    x = 369,856.34

Related Problems

Find third proportional to 40,872.50 and 86,939.50
Half scale
Find third proportional to 163,490 and 347,758
Double scale
Find third proportional to 81,747 and 173,883
Similar ratio
Find third proportional to 122,617.50 and 260,818.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.