Home / 77,968-121,506

Finding the Third Proportional to 77,968 and 121,506

Calculator

Solution

The third proportional to 77,968 and 121,506 is: 189,355.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,968 : 121,506 = 121,506 : x
  2. Step 2: Convert to fraction form
    77,968/121,506 = 121,506/x
  3. Step 3: Cross multiply
    77,968x = 121,506 × 121,506
  4. Step 4: Simplify right side
    77,968x = 14,763,708,036
  5. Step 5: Solve for x
    x = 14,763,708,036/77,968
  6. Step 6: Final answer
    x = 189,355.99

Related Problems

Find third proportional to 38,984 and 60,753
Half scale
Find third proportional to 155,936 and 243,012
Double scale
Find third proportional to 77,970 and 121,509
Similar ratio
Find third proportional to 116,952 and 182,259
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.