Home / 76,170-121,635

Finding the Third Proportional to 76,170 and 121,635

Calculator

Solution

The third proportional to 76,170 and 121,635 is: 194,237.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,170 : 121,635 = 121,635 : x
  2. Step 2: Convert to fraction form
    76,170/121,635 = 121,635/x
  3. Step 3: Cross multiply
    76,170x = 121,635 × 121,635
  4. Step 4: Simplify right side
    76,170x = 14,795,073,225
  5. Step 5: Solve for x
    x = 14,795,073,225/76,170
  6. Step 6: Final answer
    x = 194,237.54

Related Problems

Find third proportional to 38,085 and 60,817.50
Half scale
Find third proportional to 152,340 and 243,270
Double scale
Find third proportional to 76,172 and 121,638
Similar ratio
Find third proportional to 114,255 and 182,452.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.