Home / 107.20-160.68-43

Finding the Fourth Proportional to 107.20, 160.68 and 43

Calculator

Solution

The fourth proportional to 107.20, 160.68 and 43 is: 64.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.20 : 160.68 = 43 : x
  2. Step 2: Convert to fraction form
    107.20/160.68 = 43/x
  3. Step 3: Cross multiply
    107.20x = 160.68 × 43
  4. Step 4: Simplify right side
    107.20x = 6,909.24
  5. Step 5: Solve for x
    x = 6,909.24/107.20
  6. Step 6: Final answer
    x = 64.45

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.