Home / 111.36-153.36-101.76

Finding the Fourth Proportional to 111.36, 153.36 and 101.76

Calculator

Solution

The fourth proportional to 111.36, 153.36 and 101.76 is: 140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.36 : 153.36 = 101.76 : x
  2. Step 2: Convert to fraction form
    111.36/153.36 = 101.76/x
  3. Step 3: Cross multiply
    111.36x = 153.36 × 101.76
  4. Step 4: Simplify right side
    111.36x = 15,605.91
  5. Step 5: Solve for x
    x = 15,605.91/111.36
  6. Step 6: Final answer
    x = 140.14

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.