Home / 85,220-131,817

Finding the Third Proportional to 85,220 and 131,817

Calculator

Solution

The third proportional to 85,220 and 131,817 is: 203,892.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220 : 131,817 = 131,817 : x
  2. Step 2: Convert to fraction form
    85,220/131,817 = 131,817/x
  3. Step 3: Cross multiply
    85,220x = 131,817 × 131,817
  4. Step 4: Simplify right side
    85,220x = 17,375,721,489
  5. Step 5: Solve for x
    x = 17,375,721,489/85,220
  6. Step 6: Final answer
    x = 203,892.53

Related Problems

Find third proportional to 42,610 and 65,908.50
Half scale
Find third proportional to 170,440 and 263,634
Double scale
Find third proportional to 85,222 and 131,820
Similar ratio
Find third proportional to 127,830 and 197,725.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.