Home / 78,236-117,730

Finding the Third Proportional to 78,236 and 117,730

Calculator

Solution

The third proportional to 78,236 and 117,730 is: 177,160.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,236 : 117,730 = 117,730 : x
  2. Step 2: Convert to fraction form
    78,236/117,730 = 117,730/x
  3. Step 3: Cross multiply
    78,236x = 117,730 × 117,730
  4. Step 4: Simplify right side
    78,236x = 13,860,352,900
  5. Step 5: Solve for x
    x = 13,860,352,900/78,236
  6. Step 6: Final answer
    x = 177,160.81

Related Problems

Find third proportional to 39,118 and 58,865
Half scale
Find third proportional to 156,472 and 235,460
Double scale
Find third proportional to 78,238 and 117,733
Similar ratio
Find third proportional to 117,354 and 176,595
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.