Home / 157.38-235.91-76.11

Finding the Fourth Proportional to 157.38, 235.91 and 76.11

Calculator

Solution

The fourth proportional to 157.38, 235.91 and 76.11 is: 114.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.38 : 235.91 = 76.11 : x
  2. Step 2: Convert to fraction form
    157.38/235.91 = 76.11/x
  3. Step 3: Cross multiply
    157.38x = 235.91 × 76.11
  4. Step 4: Simplify right side
    157.38x = 17,954.73
  5. Step 5: Solve for x
    x = 17,954.73/157.38
  6. Step 6: Final answer
    x = 114.09

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.