Home / 159.82-217.70-156.86

Finding the Fourth Proportional to 159.82, 217.70 and 156.86

Calculator

Solution

The fourth proportional to 159.82, 217.70 and 156.86 is: 213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.82 : 217.70 = 156.86 : x
  2. Step 2: Convert to fraction form
    159.82/217.70 = 156.86/x
  3. Step 3: Cross multiply
    159.82x = 217.70 × 156.86
  4. Step 4: Simplify right side
    159.82x = 34,148.42
  5. Step 5: Solve for x
    x = 34,148.42/159.82
  6. Step 6: Final answer
    x = 213.67

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.