Home / 66,750-90,102

Finding the Third Proportional to 66,750 and 90,102

Calculator

Solution

The third proportional to 66,750 and 90,102 is: 121,623.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,750 : 90,102 = 90,102 : x
  2. Step 2: Convert to fraction form
    66,750/90,102 = 90,102/x
  3. Step 3: Cross multiply
    66,750x = 90,102 × 90,102
  4. Step 4: Simplify right side
    66,750x = 8,118,370,404
  5. Step 5: Solve for x
    x = 8,118,370,404/66,750
  6. Step 6: Final answer
    x = 121,623.53

Related Problems

Find third proportional to 33,375 and 45,051
Half scale
Find third proportional to 133,500 and 180,204
Double scale
Find third proportional to 66,752 and 90,105
Similar ratio
Find third proportional to 100,125 and 135,153
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.