Home / 107-160.50-31

Finding the Fourth Proportional to 107, 160.50 and 31

Calculator

Solution

The fourth proportional to 107, 160.50 and 31 is: 46.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107 : 160.50 = 31 : x
  2. Step 2: Convert to fraction form
    107/160.50 = 31/x
  3. Step 3: Cross multiply
    107x = 160.50 × 31
  4. Step 4: Simplify right side
    107x = 4,975.50
  5. Step 5: Solve for x
    x = 4,975.50/107
  6. Step 6: Final answer
    x = 46.50

Related Problems

Find fourth proportional to 53.50, 80.25 and 15.50
Half scale
Find fourth proportional to 214, 321 and 62
Double scale
Find fourth proportional to 108, 162 and 32
Similar ratio
Find fourth proportional to 160.50, 240.75 and 46.50
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.