Home / 121,378.50-183,708

Finding the Third Proportional to 121,378.50 and 183,708

Calculator

Solution

The third proportional to 121,378.50 and 183,708 is: 278,044.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,378.50 : 183,708 = 183,708 : x
  2. Step 2: Convert to fraction form
    121,378.50/183,708 = 183,708/x
  3. Step 3: Cross multiply
    121,378.50x = 183,708 × 183,708
  4. Step 4: Simplify right side
    121,378.50x = 33,748,629,264
  5. Step 5: Solve for x
    x = 33,748,629,264/121,378.50
  6. Step 6: Final answer
    x = 278,044.54

Related Problems

Find third proportional to 60,689.25 and 91,854
Half scale
Find third proportional to 242,757 and 367,416
Double scale
Find third proportional to 121,381 and 183,711
Similar ratio
Find third proportional to 182,067.75 and 275,562
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.