Home / 72,684-161,865

Finding the Third Proportional to 72,684 and 161,865

Calculator

Solution

The third proportional to 72,684 and 161,865 is: 360,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,684 : 161,865 = 161,865 : x
  2. Step 2: Convert to fraction form
    72,684/161,865 = 161,865/x
  3. Step 3: Cross multiply
    72,684x = 161,865 × 161,865
  4. Step 4: Simplify right side
    72,684x = 26,200,278,225
  5. Step 5: Solve for x
    x = 26,200,278,225/72,684
  6. Step 6: Final answer
    x = 360,468.30

Related Problems

Find third proportional to 36,342 and 80,932.50
Half scale
Find third proportional to 145,368 and 323,730
Double scale
Find third proportional to 72,686 and 161,869
Similar ratio
Find third proportional to 109,026 and 242,797.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.