Home / 121,580-189,753

Finding the Third Proportional to 121,580 and 189,753

Calculator

Solution

The third proportional to 121,580 and 189,753 is: 296,152.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,580 : 189,753 = 189,753 : x
  2. Step 2: Convert to fraction form
    121,580/189,753 = 189,753/x
  3. Step 3: Cross multiply
    121,580x = 189,753 × 189,753
  4. Step 4: Simplify right side
    121,580x = 36,006,201,009
  5. Step 5: Solve for x
    x = 36,006,201,009/121,580
  6. Step 6: Final answer
    x = 296,152.34

Related Problems

Find third proportional to 60,790 and 94,876.50
Half scale
Find third proportional to 243,160 and 379,506
Double scale
Find third proportional to 121,582 and 189,756
Similar ratio
Find third proportional to 182,370 and 284,629.50
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.