Home / 77,922-120,609

Finding the Third Proportional to 77,922 and 120,609

Calculator

Solution

The third proportional to 77,922 and 120,609 is: 186,680.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,922 : 120,609 = 120,609 : x
  2. Step 2: Convert to fraction form
    77,922/120,609 = 120,609/x
  3. Step 3: Cross multiply
    77,922x = 120,609 × 120,609
  4. Step 4: Simplify right side
    77,922x = 14,546,530,881
  5. Step 5: Solve for x
    x = 14,546,530,881/77,922
  6. Step 6: Final answer
    x = 186,680.67

Related Problems

Find third proportional to 38,961 and 60,304.50
Half scale
Find third proportional to 155,844 and 241,218
Double scale
Find third proportional to 77,924 and 120,612
Similar ratio
Find third proportional to 116,883 and 180,913.50
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.