Home / 77,742-122,907

Finding the Third Proportional to 77,742 and 122,907

Calculator

Solution

The third proportional to 77,742 and 122,907 is: 194,311.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,742 : 122,907 = 122,907 : x
  2. Step 2: Convert to fraction form
    77,742/122,907 = 122,907/x
  3. Step 3: Cross multiply
    77,742x = 122,907 × 122,907
  4. Step 4: Simplify right side
    77,742x = 15,106,130,649
  5. Step 5: Solve for x
    x = 15,106,130,649/77,742
  6. Step 6: Final answer
    x = 194,311.06

Related Problems

Find third proportional to 38,871 and 61,453.50
Half scale
Find third proportional to 155,484 and 245,814
Double scale
Find third proportional to 77,744 and 122,910
Similar ratio
Find third proportional to 116,613 and 184,360.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.