Home / 71,242-156,780

Finding the Third Proportional to 71,242 and 156,780

Calculator

Solution

The third proportional to 71,242 and 156,780 is: 345,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,242 : 156,780 = 156,780 : x
  2. Step 2: Convert to fraction form
    71,242/156,780 = 156,780/x
  3. Step 3: Cross multiply
    71,242x = 156,780 × 156,780
  4. Step 4: Simplify right side
    71,242x = 24,579,968,400
  5. Step 5: Solve for x
    x = 24,579,968,400/71,242
  6. Step 6: Final answer
    x = 345,020.75

Related Problems

Find third proportional to 35,621 and 78,390
Half scale
Find third proportional to 142,484 and 313,560
Double scale
Find third proportional to 71,244 and 156,784
Similar ratio
Find third proportional to 106,863 and 235,170
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.