Home / 165.57-228.34-103.33

Finding the Fourth Proportional to 165.57, 228.34 and 103.33

Calculator

Solution

The fourth proportional to 165.57, 228.34 and 103.33 is: 142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.57 : 228.34 = 103.33 : x
  2. Step 2: Convert to fraction form
    165.57/228.34 = 103.33/x
  3. Step 3: Cross multiply
    165.57x = 228.34 × 103.33
  4. Step 4: Simplify right side
    165.57x = 23,594.37
  5. Step 5: Solve for x
    x = 23,594.37/165.57
  6. Step 6: Final answer
    x = 142.50

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.