Home / 81,748-126,630

Finding the Third Proportional to 81,748 and 126,630

Calculator

Solution

The third proportional to 81,748 and 126,630 is: 196,153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,748 : 126,630 = 126,630 : x
  2. Step 2: Convert to fraction form
    81,748/126,630 = 126,630/x
  3. Step 3: Cross multiply
    81,748x = 126,630 × 126,630
  4. Step 4: Simplify right side
    81,748x = 16,035,156,900
  5. Step 5: Solve for x
    x = 16,035,156,900/81,748
  6. Step 6: Final answer
    x = 196,153.51

Related Problems

Find third proportional to 40,874 and 63,315
Half scale
Find third proportional to 163,496 and 253,260
Double scale
Find third proportional to 81,750 and 126,633
Similar ratio
Find third proportional to 122,622 and 189,945
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.