Home / 134.25-185.24-78.99

Finding the Fourth Proportional to 134.25, 185.24 and 78.99

Calculator

Solution

The fourth proportional to 134.25, 185.24 and 78.99 is: 108.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.25 : 185.24 = 78.99 : x
  2. Step 2: Convert to fraction form
    134.25/185.24 = 78.99/x
  3. Step 3: Cross multiply
    134.25x = 185.24 × 78.99
  4. Step 4: Simplify right side
    134.25x = 14,631.71
  5. Step 5: Solve for x
    x = 14,631.71/134.25
  6. Step 6: Final answer
    x = 108.99

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.