Home / 103.30-154.82-69.01

Finding the Fourth Proportional to 103.30, 154.82 and 69.01

Calculator

Solution

The fourth proportional to 103.30, 154.82 and 69.01 is: 103.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103.30 : 154.82 = 69.01 : x
  2. Step 2: Convert to fraction form
    103.30/154.82 = 69.01/x
  3. Step 3: Cross multiply
    103.30x = 154.82 × 69.01
  4. Step 4: Simplify right side
    103.30x = 10,683.78
  5. Step 5: Solve for x
    x = 10,683.78/103.30
  6. Step 6: Final answer
    x = 103.42

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.