Home / 121,560-183,960

Finding the Third Proportional to 121,560 and 183,960

Calculator

Solution

The third proportional to 121,560 and 183,960 is: 278,391.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,560 : 183,960 = 183,960 : x
  2. Step 2: Convert to fraction form
    121,560/183,960 = 183,960/x
  3. Step 3: Cross multiply
    121,560x = 183,960 × 183,960
  4. Step 4: Simplify right side
    121,560x = 33,841,281,600
  5. Step 5: Solve for x
    x = 33,841,281,600/121,560
  6. Step 6: Final answer
    x = 278,391.59

Related Problems

Find third proportional to 60,780 and 91,980
Half scale
Find third proportional to 243,120 and 367,920
Double scale
Find third proportional to 121,562 and 183,963
Similar ratio
Find third proportional to 182,340 and 275,940
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.