Home / 78,160-120,976

Finding the Third Proportional to 78,160 and 120,976

Calculator

Solution

The third proportional to 78,160 and 120,976 is: 187,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,160 : 120,976 = 120,976 : x
  2. Step 2: Convert to fraction form
    78,160/120,976 = 120,976/x
  3. Step 3: Cross multiply
    78,160x = 120,976 × 120,976
  4. Step 4: Simplify right side
    78,160x = 14,635,192,576
  5. Step 5: Solve for x
    x = 14,635,192,576/78,160
  6. Step 6: Final answer
    x = 187,246.58

Related Problems

Find third proportional to 39,080 and 60,488
Half scale
Find third proportional to 156,320 and 241,952
Double scale
Find third proportional to 78,162 and 120,979
Similar ratio
Find third proportional to 117,240 and 181,464
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.