Home / 121,842-191,178

Finding the Third Proportional to 121,842 and 191,178

Calculator

Solution

The third proportional to 121,842 and 191,178 is: 299,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,842 : 191,178 = 191,178 : x
  2. Step 2: Convert to fraction form
    121,842/191,178 = 191,178/x
  3. Step 3: Cross multiply
    121,842x = 191,178 × 191,178
  4. Step 4: Simplify right side
    121,842x = 36,549,027,684
  5. Step 5: Solve for x
    x = 36,549,027,684/121,842
  6. Step 6: Final answer
    x = 299,970.68

Related Problems

Find third proportional to 60,921 and 95,589
Half scale
Find third proportional to 243,684 and 382,356
Double scale
Find third proportional to 121,844 and 191,181
Similar ratio
Find third proportional to 182,763 and 286,767
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.