Home / 121,877-194,621

Finding the Third Proportional to 121,877 and 194,621

Calculator

Solution

The third proportional to 121,877 and 194,621 is: 310,783.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,877 : 194,621 = 194,621 : x
  2. Step 2: Convert to fraction form
    121,877/194,621 = 194,621/x
  3. Step 3: Cross multiply
    121,877x = 194,621 × 194,621
  4. Step 4: Simplify right side
    121,877x = 37,877,333,641
  5. Step 5: Solve for x
    x = 37,877,333,641/121,877
  6. Step 6: Final answer
    x = 310,783.28

Related Problems

Find third proportional to 60,938.50 and 97,310.50
Half scale
Find third proportional to 243,754 and 389,242
Double scale
Find third proportional to 121,879 and 194,624
Similar ratio
Find third proportional to 182,815.50 and 291,931.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.