Home / 77,920-166,208

Finding the Third Proportional to 77,920 and 166,208

Calculator

Solution

The third proportional to 77,920 and 166,208 is: 354,531.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,920 : 166,208 = 166,208 : x
  2. Step 2: Convert to fraction form
    77,920/166,208 = 166,208/x
  3. Step 3: Cross multiply
    77,920x = 166,208 × 166,208
  4. Step 4: Simplify right side
    77,920x = 27,625,099,264
  5. Step 5: Solve for x
    x = 27,625,099,264/77,920
  6. Step 6: Final answer
    x = 354,531.56

Related Problems

Find third proportional to 38,960 and 83,104
Half scale
Find third proportional to 155,840 and 332,416
Double scale
Find third proportional to 77,922 and 166,212
Similar ratio
Find third proportional to 116,880 and 249,312
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.