Home / 81,681-179,916

Finding the Third Proportional to 81,681 and 179,916

Calculator

Solution

The third proportional to 81,681 and 179,916 is: 396,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,681 : 179,916 = 179,916 : x
  2. Step 2: Convert to fraction form
    81,681/179,916 = 179,916/x
  3. Step 3: Cross multiply
    81,681x = 179,916 × 179,916
  4. Step 4: Simplify right side
    81,681x = 32,369,767,056
  5. Step 5: Solve for x
    x = 32,369,767,056/81,681
  6. Step 6: Final answer
    x = 396,294.94

Related Problems

Find third proportional to 40,840.50 and 89,958
Half scale
Find third proportional to 163,362 and 359,832
Double scale
Find third proportional to 81,683 and 179,920
Similar ratio
Find third proportional to 122,521.50 and 269,874
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.