Home / 76,680-120,312

Finding the Third Proportional to 76,680 and 120,312

Calculator

Solution

The third proportional to 76,680 and 120,312 is: 188,771.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,680 : 120,312 = 120,312 : x
  2. Step 2: Convert to fraction form
    76,680/120,312 = 120,312/x
  3. Step 3: Cross multiply
    76,680x = 120,312 × 120,312
  4. Step 4: Simplify right side
    76,680x = 14,474,977,344
  5. Step 5: Solve for x
    x = 14,474,977,344/76,680
  6. Step 6: Final answer
    x = 188,771.22

Related Problems

Find third proportional to 38,340 and 60,156
Half scale
Find third proportional to 153,360 and 240,624
Double scale
Find third proportional to 76,682 and 120,315
Similar ratio
Find third proportional to 115,020 and 180,468
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.