Home / 78,760-170,642

Finding the Third Proportional to 78,760 and 170,642

Calculator

Solution

The third proportional to 78,760 and 170,642 is: 369,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,760 : 170,642 = 170,642 : x
  2. Step 2: Convert to fraction form
    78,760/170,642 = 170,642/x
  3. Step 3: Cross multiply
    78,760x = 170,642 × 170,642
  4. Step 4: Simplify right side
    78,760x = 29,118,692,164
  5. Step 5: Solve for x
    x = 29,118,692,164/78,760
  6. Step 6: Final answer
    x = 369,714.22

Related Problems

Find third proportional to 39,380 and 85,321
Half scale
Find third proportional to 157,520 and 341,284
Double scale
Find third proportional to 78,762 and 170,646
Similar ratio
Find third proportional to 118,140 and 255,963
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.