Home / 101.15-151.33-89.61

Finding the Fourth Proportional to 101.15, 151.33 and 89.61

Calculator

Solution

The fourth proportional to 101.15, 151.33 and 89.61 is: 134.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.15 : 151.33 = 89.61 : x
  2. Step 2: Convert to fraction form
    101.15/151.33 = 89.61/x
  3. Step 3: Cross multiply
    101.15x = 151.33 × 89.61
  4. Step 4: Simplify right side
    101.15x = 13,559.92
  5. Step 5: Solve for x
    x = 13,559.92/101.15
  6. Step 6: Final answer
    x = 134.06

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.