Home / 76,818-118,689

Finding the Third Proportional to 76,818 and 118,689

Calculator

Solution

The third proportional to 76,818 and 118,689 is: 183,382.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,818 : 118,689 = 118,689 : x
  2. Step 2: Convert to fraction form
    76,818/118,689 = 118,689/x
  3. Step 3: Cross multiply
    76,818x = 118,689 × 118,689
  4. Step 4: Simplify right side
    76,818x = 14,087,078,721
  5. Step 5: Solve for x
    x = 14,087,078,721/76,818
  6. Step 6: Final answer
    x = 183,382.52

Related Problems

Find third proportional to 38,409 and 59,344.50
Half scale
Find third proportional to 153,636 and 237,378
Double scale
Find third proportional to 76,820 and 118,692
Similar ratio
Find third proportional to 115,227 and 178,033.50
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.