Home / 121,950-187,785

Finding the Third Proportional to 121,950 and 187,785

Calculator

Solution

The third proportional to 121,950 and 187,785 is: 289,161.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,950 : 187,785 = 187,785 : x
  2. Step 2: Convert to fraction form
    121,950/187,785 = 187,785/x
  3. Step 3: Cross multiply
    121,950x = 187,785 × 187,785
  4. Step 4: Simplify right side
    121,950x = 35,263,206,225
  5. Step 5: Solve for x
    x = 35,263,206,225/121,950
  6. Step 6: Final answer
    x = 289,161.18

Related Problems

Find third proportional to 60,975 and 93,892.50
Half scale
Find third proportional to 243,900 and 375,570
Double scale
Find third proportional to 121,952 and 187,788
Similar ratio
Find third proportional to 182,925 and 281,677.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.