Home / 77,130-117,324

Finding the Third Proportional to 77,130 and 117,324

Calculator

Solution

The third proportional to 77,130 and 117,324 is: 178,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,130 : 117,324 = 117,324 : x
  2. Step 2: Convert to fraction form
    77,130/117,324 = 117,324/x
  3. Step 3: Cross multiply
    77,130x = 117,324 × 117,324
  4. Step 4: Simplify right side
    77,130x = 13,764,920,976
  5. Step 5: Solve for x
    x = 13,764,920,976/77,130
  6. Step 6: Final answer
    x = 178,463.90

Related Problems

Find third proportional to 38,565 and 58,662
Half scale
Find third proportional to 154,260 and 234,648
Double scale
Find third proportional to 77,132 and 117,327
Similar ratio
Find third proportional to 115,695 and 175,986
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.