Home / 121,519-189,956

Finding the Third Proportional to 121,519 and 189,956

Calculator

Solution

The third proportional to 121,519 and 189,956 is: 296,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,519 : 189,956 = 189,956 : x
  2. Step 2: Convert to fraction form
    121,519/189,956 = 189,956/x
  3. Step 3: Cross multiply
    121,519x = 189,956 × 189,956
  4. Step 4: Simplify right side
    121,519x = 36,083,281,936
  5. Step 5: Solve for x
    x = 36,083,281,936/121,519
  6. Step 6: Final answer
    x = 296,935.31

Related Problems

Find third proportional to 60,759.50 and 94,978
Half scale
Find third proportional to 243,038 and 379,912
Double scale
Find third proportional to 121,521 and 189,959
Similar ratio
Find third proportional to 182,278.50 and 284,934
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.