Home / 116.80-164-116.80

Finding the Fourth Proportional to 116.80, 164 and 116.80

Calculator

Solution

The fourth proportional to 116.80, 164 and 116.80 is: 164

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.80 : 164 = 116.80 : x
  2. Step 2: Convert to fraction form
    116.80/164 = 116.80/x
  3. Step 3: Cross multiply
    116.80x = 164 × 116.80
  4. Step 4: Simplify right side
    116.80x = 19,155.20
  5. Step 5: Solve for x
    x = 19,155.20/116.80
  6. Step 6: Final answer
    x = 164

Related Problems

Find fourth proportional to 58.40, 82 and 58.40
Half scale
Find fourth proportional to 233.60, 328 and 233.60
Double scale
Find fourth proportional to 117.80, 165.40 and 117.80
Similar ratio
Find fourth proportional to 175.20, 246 and 175.20
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.