Home / 78,296-104,880

Finding the Third Proportional to 78,296 and 104,880

Calculator

Solution

The third proportional to 78,296 and 104,880 is: 140,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,296 : 104,880 = 104,880 : x
  2. Step 2: Convert to fraction form
    78,296/104,880 = 104,880/x
  3. Step 3: Cross multiply
    78,296x = 104,880 × 104,880
  4. Step 4: Simplify right side
    78,296x = 10,999,814,400
  5. Step 5: Solve for x
    x = 10,999,814,400/78,296
  6. Step 6: Final answer
    x = 140,490.12

Related Problems

Find third proportional to 39,148 and 52,440
Half scale
Find third proportional to 156,592 and 209,760
Double scale
Find third proportional to 78,298 and 104,883
Similar ratio
Find third proportional to 117,444 and 157,320
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.