Home / 84,328-128,218

Finding the Third Proportional to 84,328 and 128,218

Calculator

Solution

The third proportional to 84,328 and 128,218 is: 194,951.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,328 : 128,218 = 128,218 : x
  2. Step 2: Convert to fraction form
    84,328/128,218 = 128,218/x
  3. Step 3: Cross multiply
    84,328x = 128,218 × 128,218
  4. Step 4: Simplify right side
    84,328x = 16,439,855,524
  5. Step 5: Solve for x
    x = 16,439,855,524/84,328
  6. Step 6: Final answer
    x = 194,951.33

Related Problems

Find third proportional to 42,164 and 64,109
Half scale
Find third proportional to 168,656 and 256,436
Double scale
Find third proportional to 84,330 and 128,221
Similar ratio
Find third proportional to 126,492 and 192,327
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.