Home / 81,783-176,688

Finding the Third Proportional to 81,783 and 176,688

Calculator

Solution

The third proportional to 81,783 and 176,688 is: 381,725.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,783 : 176,688 = 176,688 : x
  2. Step 2: Convert to fraction form
    81,783/176,688 = 176,688/x
  3. Step 3: Cross multiply
    81,783x = 176,688 × 176,688
  4. Step 4: Simplify right side
    81,783x = 31,218,649,344
  5. Step 5: Solve for x
    x = 31,218,649,344/81,783
  6. Step 6: Final answer
    x = 381,725.41

Related Problems

Find third proportional to 40,891.50 and 88,344
Half scale
Find third proportional to 163,566 and 353,376
Double scale
Find third proportional to 81,785 and 176,692
Similar ratio
Find third proportional to 122,674.50 and 265,032
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.