Home / 85,401-128,376

Finding the Third Proportional to 85,401 and 128,376

Calculator

Solution

The third proportional to 85,401 and 128,376 is: 192,976.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,401 : 128,376 = 128,376 : x
  2. Step 2: Convert to fraction form
    85,401/128,376 = 128,376/x
  3. Step 3: Cross multiply
    85,401x = 128,376 × 128,376
  4. Step 4: Simplify right side
    85,401x = 16,480,397,376
  5. Step 5: Solve for x
    x = 16,480,397,376/85,401
  6. Step 6: Final answer
    x = 192,976.63

Related Problems

Find third proportional to 42,700.50 and 64,188
Half scale
Find third proportional to 170,802 and 256,752
Double scale
Find third proportional to 85,403 and 128,379
Similar ratio
Find third proportional to 128,101.50 and 192,564
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.