Home / 115,502-155,721

Finding the Third Proportional to 115,502 and 155,721

Calculator

Solution

The third proportional to 115,502 and 155,721 is: 209,944.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,502 : 155,721 = 155,721 : x
  2. Step 2: Convert to fraction form
    115,502/155,721 = 155,721/x
  3. Step 3: Cross multiply
    115,502x = 155,721 × 155,721
  4. Step 4: Simplify right side
    115,502x = 24,249,029,841
  5. Step 5: Solve for x
    x = 24,249,029,841/115,502
  6. Step 6: Final answer
    x = 209,944.67

Related Problems

Find third proportional to 57,751 and 77,860.50
Half scale
Find third proportional to 231,004 and 311,442
Double scale
Find third proportional to 115,504 and 155,724
Similar ratio
Find third proportional to 173,253 and 233,581.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.