Home / 143.84-216-112.04

Finding the Fourth Proportional to 143.84, 216 and 112.04

Calculator

Solution

The fourth proportional to 143.84, 216 and 112.04 is: 168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.84 : 216 = 112.04 : x
  2. Step 2: Convert to fraction form
    143.84/216 = 112.04/x
  3. Step 3: Cross multiply
    143.84x = 216 × 112.04
  4. Step 4: Simplify right side
    143.84x = 24,200.64
  5. Step 5: Solve for x
    x = 24,200.64/143.84
  6. Step 6: Final answer
    x = 168.25

Related Problems

Find fourth proportional to 71.92, 108 and 56.02
Half scale
Find fourth proportional to 287.68, 432 and 224.08
Double scale
Find fourth proportional to 144.84, 217.50 and 113.04
Similar ratio
Find fourth proportional to 215.76, 324 and 168.06
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.