Home / 129,600-165,600

Finding the Third Proportional to 129,600 and 165,600

Calculator

Solution

The third proportional to 129,600 and 165,600 is: 211,600

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,600 : 165,600 = 165,600 : x
  2. Step 2: Convert to fraction form
    129,600/165,600 = 165,600/x
  3. Step 3: Cross multiply
    129,600x = 165,600 × 165,600
  4. Step 4: Simplify right side
    129,600x = 27,423,360,000
  5. Step 5: Solve for x
    x = 27,423,360,000/129,600
  6. Step 6: Final answer
    x = 211,600

Related Problems

Find third proportional to 64,800 and 82,800
Half scale
Find third proportional to 259,200 and 331,200
Double scale
Find third proportional to 129,602 and 165,603
Similar ratio
Find third proportional to 194,400 and 248,400
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.