Home / 90,819.50-197,987

Finding the Third Proportional to 90,819.50 and 197,987

Calculator

Solution

The third proportional to 90,819.50 and 197,987 is: 431,612.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,819.50 : 197,987 = 197,987 : x
  2. Step 2: Convert to fraction form
    90,819.50/197,987 = 197,987/x
  3. Step 3: Cross multiply
    90,819.50x = 197,987 × 197,987
  4. Step 4: Simplify right side
    90,819.50x = 39,198,852,169
  5. Step 5: Solve for x
    x = 39,198,852,169/90,819.50
  6. Step 6: Final answer
    x = 431,612.73

Related Problems

Find third proportional to 45,409.75 and 98,993.50
Half scale
Find third proportional to 181,639 and 395,974
Double scale
Find third proportional to 90,822 and 197,991
Similar ratio
Find third proportional to 136,229.25 and 296,980.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.