Home / 78,238-117,730

Finding the Third Proportional to 78,238 and 117,730

Calculator

Solution

The third proportional to 78,238 and 117,730 is: 177,156.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,238 : 117,730 = 117,730 : x
  2. Step 2: Convert to fraction form
    78,238/117,730 = 117,730/x
  3. Step 3: Cross multiply
    78,238x = 117,730 × 117,730
  4. Step 4: Simplify right side
    78,238x = 13,860,352,900
  5. Step 5: Solve for x
    x = 13,860,352,900/78,238
  6. Step 6: Final answer
    x = 177,156.28

Related Problems

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.