Home / 120,786.75-257,166

Finding the Third Proportional to 120,786.75 and 257,166

Calculator

Solution

The third proportional to 120,786.75 and 257,166 is: 547,529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,786.75 : 257,166 = 257,166 : x
  2. Step 2: Convert to fraction form
    120,786.75/257,166 = 257,166/x
  3. Step 3: Cross multiply
    120,786.75x = 257,166 × 257,166
  4. Step 4: Simplify right side
    120,786.75x = 66,134,351,556
  5. Step 5: Solve for x
    x = 66,134,351,556/120,786.75
  6. Step 6: Final answer
    x = 547,529.85

Related Problems

Find third proportional to 60,393.38 and 128,583
Half scale
Find third proportional to 241,573.50 and 514,332
Double scale
Find third proportional to 120,789 and 257,170
Similar ratio
Find third proportional to 181,180.13 and 385,749
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.