Home / 78,800-115,608

Finding the Third Proportional to 78,800 and 115,608

Calculator

Solution

The third proportional to 78,800 and 115,608 is: 169,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,800 : 115,608 = 115,608 : x
  2. Step 2: Convert to fraction form
    78,800/115,608 = 115,608/x
  3. Step 3: Cross multiply
    78,800x = 115,608 × 115,608
  4. Step 4: Simplify right side
    78,800x = 13,365,209,664
  5. Step 5: Solve for x
    x = 13,365,209,664/78,800
  6. Step 6: Final answer
    x = 169,609.26

Related Problems

Find third proportional to 39,400 and 57,804
Half scale
Find third proportional to 157,600 and 231,216
Double scale
Find third proportional to 78,802 and 115,611
Similar ratio
Find third proportional to 118,200 and 173,412
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.