Home / 181.26-271.32-99.90

Finding the Fourth Proportional to 181.26, 271.32 and 99.90

Calculator

Solution

The fourth proportional to 181.26, 271.32 and 99.90 is: 149.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.26 : 271.32 = 99.90 : x
  2. Step 2: Convert to fraction form
    181.26/271.32 = 99.90/x
  3. Step 3: Cross multiply
    181.26x = 271.32 × 99.90
  4. Step 4: Simplify right side
    181.26x = 27,104.87
  5. Step 5: Solve for x
    x = 27,104.87/181.26
  6. Step 6: Final answer
    x = 149.54

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.