Home / 67,620-105,115

Finding the Third Proportional to 67,620 and 105,115

Calculator

Solution

The third proportional to 67,620 and 105,115 is: 163,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,620 : 105,115 = 105,115 : x
  2. Step 2: Convert to fraction form
    67,620/105,115 = 105,115/x
  3. Step 3: Cross multiply
    67,620x = 105,115 × 105,115
  4. Step 4: Simplify right side
    67,620x = 11,049,163,225
  5. Step 5: Solve for x
    x = 11,049,163,225/67,620
  6. Step 6: Final answer
    x = 163,400.82

Related Problems

Find third proportional to 33,810 and 52,557.50
Half scale
Find third proportional to 135,240 and 210,230
Double scale
Find third proportional to 67,622 and 105,118
Similar ratio
Find third proportional to 101,430 and 157,672.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.