Home / 78,252-121,236

Finding the Third Proportional to 78,252 and 121,236

Calculator

Solution

The third proportional to 78,252 and 121,236 is: 187,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,252 : 121,236 = 121,236 : x
  2. Step 2: Convert to fraction form
    78,252/121,236 = 121,236/x
  3. Step 3: Cross multiply
    78,252x = 121,236 × 121,236
  4. Step 4: Simplify right side
    78,252x = 14,698,167,696
  5. Step 5: Solve for x
    x = 14,698,167,696/78,252
  6. Step 6: Final answer
    x = 187,831.21

Related Problems

Find third proportional to 39,126 and 60,618
Half scale
Find third proportional to 156,504 and 242,472
Double scale
Find third proportional to 78,254 and 121,239
Similar ratio
Find third proportional to 117,378 and 181,854
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.