Home / 81,388-169,014

Finding the Third Proportional to 81,388 and 169,014

Calculator

Solution

The third proportional to 81,388 and 169,014 is: 350,982.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,388 : 169,014 = 169,014 : x
  2. Step 2: Convert to fraction form
    81,388/169,014 = 169,014/x
  3. Step 3: Cross multiply
    81,388x = 169,014 × 169,014
  4. Step 4: Simplify right side
    81,388x = 28,565,732,196
  5. Step 5: Solve for x
    x = 28,565,732,196/81,388
  6. Step 6: Final answer
    x = 350,982.11

Related Problems

Find third proportional to 40,694 and 84,507
Half scale
Find third proportional to 162,776 and 338,028
Double scale
Find third proportional to 81,390 and 169,018
Similar ratio
Find third proportional to 122,082 and 253,521
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.