Home / 78,770-118,155

Finding the Third Proportional to 78,770 and 118,155

Calculator

Solution

The third proportional to 78,770 and 118,155 is: 177,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,770 : 118,155 = 118,155 : x
  2. Step 2: Convert to fraction form
    78,770/118,155 = 118,155/x
  3. Step 3: Cross multiply
    78,770x = 118,155 × 118,155
  4. Step 4: Simplify right side
    78,770x = 13,960,604,025
  5. Step 5: Solve for x
    x = 13,960,604,025/78,770
  6. Step 6: Final answer
    x = 177,232.50

Related Problems

Find third proportional to 39,385 and 59,077.50
Half scale
Find third proportional to 157,540 and 236,310
Double scale
Find third proportional to 78,772 and 118,158
Similar ratio
Find third proportional to 118,155 and 177,232.50
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.