Home / 77,998-120,672

Finding the Third Proportional to 77,998 and 120,672

Calculator

Solution

The third proportional to 77,998 and 120,672 is: 186,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,998 : 120,672 = 120,672 : x
  2. Step 2: Convert to fraction form
    77,998/120,672 = 120,672/x
  3. Step 3: Cross multiply
    77,998x = 120,672 × 120,672
  4. Step 4: Simplify right side
    77,998x = 14,561,731,584
  5. Step 5: Solve for x
    x = 14,561,731,584/77,998
  6. Step 6: Final answer
    x = 186,693.65

Related Problems

Find third proportional to 38,999 and 60,336
Half scale
Find third proportional to 155,996 and 241,344
Double scale
Find third proportional to 78,000 and 120,675
Similar ratio
Find third proportional to 116,997 and 181,008
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.