Home / 87,477-139,259

Finding the Third Proportional to 87,477 and 139,259

Calculator

Solution

The third proportional to 87,477 and 139,259 is: 221,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,477 : 139,259 = 139,259 : x
  2. Step 2: Convert to fraction form
    87,477/139,259 = 139,259/x
  3. Step 3: Cross multiply
    87,477x = 139,259 × 139,259
  4. Step 4: Simplify right side
    87,477x = 19,393,069,081
  5. Step 5: Solve for x
    x = 19,393,069,081/87,477
  6. Step 6: Final answer
    x = 221,693.35

Related Problems

Find third proportional to 43,738.50 and 69,629.50
Half scale
Find third proportional to 174,954 and 278,518
Double scale
Find third proportional to 87,479 and 139,262
Similar ratio
Find third proportional to 131,215.50 and 208,888.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.