Home / 121,639.50-183,915

Finding the Third Proportional to 121,639.50 and 183,915

Calculator

Solution

The third proportional to 121,639.50 and 183,915 is: 278,073.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,639.50 : 183,915 = 183,915 : x
  2. Step 2: Convert to fraction form
    121,639.50/183,915 = 183,915/x
  3. Step 3: Cross multiply
    121,639.50x = 183,915 × 183,915
  4. Step 4: Simplify right side
    121,639.50x = 33,824,727,225
  5. Step 5: Solve for x
    x = 33,824,727,225/121,639.50
  6. Step 6: Final answer
    x = 278,073.55

Related Problems

Find third proportional to 60,819.75 and 91,957.50
Half scale
Find third proportional to 243,279 and 367,830
Double scale
Find third proportional to 121,642 and 183,918
Similar ratio
Find third proportional to 182,459.25 and 275,872.50
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.