Home / 78,107-168,080

Finding the Third Proportional to 78,107 and 168,080

Calculator

Solution

The third proportional to 78,107 and 168,080 is: 361,694.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,107 : 168,080 = 168,080 : x
  2. Step 2: Convert to fraction form
    78,107/168,080 = 168,080/x
  3. Step 3: Cross multiply
    78,107x = 168,080 × 168,080
  4. Step 4: Simplify right side
    78,107x = 28,250,886,400
  5. Step 5: Solve for x
    x = 28,250,886,400/78,107
  6. Step 6: Final answer
    x = 361,694.68

Related Problems

Find third proportional to 39,053.50 and 84,040
Half scale
Find third proportional to 156,214 and 336,160
Double scale
Find third proportional to 78,109 and 168,084
Similar ratio
Find third proportional to 117,160.50 and 252,120
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.