Home / 80,478-120,175

Finding the Third Proportional to 80,478 and 120,175

Calculator

Solution

The third proportional to 80,478 and 120,175 is: 179,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,478 : 120,175 = 120,175 : x
  2. Step 2: Convert to fraction form
    80,478/120,175 = 120,175/x
  3. Step 3: Cross multiply
    80,478x = 120,175 × 120,175
  4. Step 4: Simplify right side
    80,478x = 14,442,030,625
  5. Step 5: Solve for x
    x = 14,442,030,625/80,478
  6. Step 6: Final answer
    x = 179,453.15

Related Problems

Find third proportional to 40,239 and 60,087.50
Half scale
Find third proportional to 160,956 and 240,350
Double scale
Find third proportional to 80,480 and 120,178
Similar ratio
Find third proportional to 120,717 and 180,262.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.