Home / 121,572-189,741

Finding the Third Proportional to 121,572 and 189,741

Calculator

Solution

The third proportional to 121,572 and 189,741 is: 296,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,572 : 189,741 = 189,741 : x
  2. Step 2: Convert to fraction form
    121,572/189,741 = 189,741/x
  3. Step 3: Cross multiply
    121,572x = 189,741 × 189,741
  4. Step 4: Simplify right side
    121,572x = 36,001,647,081
  5. Step 5: Solve for x
    x = 36,001,647,081/121,572
  6. Step 6: Final answer
    x = 296,134.37

Related Problems

Find third proportional to 60,786 and 94,870.50
Half scale
Find third proportional to 243,144 and 379,482
Double scale
Find third proportional to 121,574 and 189,744
Similar ratio
Find third proportional to 182,358 and 284,611.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.