Home / 81,903-127,229

Finding the Third Proportional to 81,903 and 127,229

Calculator

Solution

The third proportional to 81,903 and 127,229 is: 197,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,903 : 127,229 = 127,229 : x
  2. Step 2: Convert to fraction form
    81,903/127,229 = 127,229/x
  3. Step 3: Cross multiply
    81,903x = 127,229 × 127,229
  4. Step 4: Simplify right side
    81,903x = 16,187,218,441
  5. Step 5: Solve for x
    x = 16,187,218,441/81,903
  6. Step 6: Final answer
    x = 197,638.90

Related Problems

Find third proportional to 40,951.50 and 63,614.50
Half scale
Find third proportional to 163,806 and 254,458
Double scale
Find third proportional to 81,905 and 127,232
Similar ratio
Find third proportional to 122,854.50 and 190,843.50
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.