Home / 71,440-156,990

Finding the Third Proportional to 71,440 and 156,990

Calculator

Solution

The third proportional to 71,440 and 156,990 is: 344,986.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,440 : 156,990 = 156,990 : x
  2. Step 2: Convert to fraction form
    71,440/156,990 = 156,990/x
  3. Step 3: Cross multiply
    71,440x = 156,990 × 156,990
  4. Step 4: Simplify right side
    71,440x = 24,645,860,100
  5. Step 5: Solve for x
    x = 24,645,860,100/71,440
  6. Step 6: Final answer
    x = 344,986.84

Related Problems

Find third proportional to 35,720 and 78,495
Half scale
Find third proportional to 142,880 and 313,980
Double scale
Find third proportional to 71,442 and 156,994
Similar ratio
Find third proportional to 107,160 and 235,485
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.