Home / 81,980-169,068

Finding the Third Proportional to 81,980 and 169,068

Calculator

Solution

The third proportional to 81,980 and 169,068 is: 348,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,980 : 169,068 = 169,068 : x
  2. Step 2: Convert to fraction form
    81,980/169,068 = 169,068/x
  3. Step 3: Cross multiply
    81,980x = 169,068 × 169,068
  4. Step 4: Simplify right side
    81,980x = 28,583,988,624
  5. Step 5: Solve for x
    x = 28,583,988,624/81,980
  6. Step 6: Final answer
    x = 348,670.27

Related Problems

Find third proportional to 40,990 and 84,534
Half scale
Find third proportional to 163,960 and 338,136
Double scale
Find third proportional to 81,982 and 169,072
Similar ratio
Find third proportional to 122,970 and 253,602
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.