Home / 111.17-153.70-106.36

Finding the Fourth Proportional to 111.17, 153.70 and 106.36

Calculator

Solution

The fourth proportional to 111.17, 153.70 and 106.36 is: 147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.17 : 153.70 = 106.36 : x
  2. Step 2: Convert to fraction form
    111.17/153.70 = 106.36/x
  3. Step 3: Cross multiply
    111.17x = 153.70 × 106.36
  4. Step 4: Simplify right side
    111.17x = 16,347.75
  5. Step 5: Solve for x
    x = 16,347.75/111.17
  6. Step 6: Final answer
    x = 147.05

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.