Home / 80,664-128,127

Finding the Third Proportional to 80,664 and 128,127

Calculator

Solution

The third proportional to 80,664 and 128,127 is: 203,517.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,664 : 128,127 = 128,127 : x
  2. Step 2: Convert to fraction form
    80,664/128,127 = 128,127/x
  3. Step 3: Cross multiply
    80,664x = 128,127 × 128,127
  4. Step 4: Simplify right side
    80,664x = 16,416,528,129
  5. Step 5: Solve for x
    x = 16,416,528,129/80,664
  6. Step 6: Final answer
    x = 203,517.41

Related Problems

Find third proportional to 40,332 and 64,063.50
Half scale
Find third proportional to 161,328 and 256,254
Double scale
Find third proportional to 80,666 and 128,130
Similar ratio
Find third proportional to 120,996 and 192,190.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.