Home / 79,816-120,311

Finding the Third Proportional to 79,816 and 120,311

Calculator

Solution

The third proportional to 79,816 and 120,311 is: 181,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,816 : 120,311 = 120,311 : x
  2. Step 2: Convert to fraction form
    79,816/120,311 = 120,311/x
  3. Step 3: Cross multiply
    79,816x = 120,311 × 120,311
  4. Step 4: Simplify right side
    79,816x = 14,474,736,721
  5. Step 5: Solve for x
    x = 14,474,736,721/79,816
  6. Step 6: Final answer
    x = 181,351.32

Related Problems

Find third proportional to 39,908 and 60,155.50
Half scale
Find third proportional to 159,632 and 240,622
Double scale
Find third proportional to 79,818 and 120,314
Similar ratio
Find third proportional to 119,724 and 180,466.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.