Home / 148.39-205.00-117.20

Finding the Fourth Proportional to 148.39, 205.00 and 117.20

Calculator

Solution

The fourth proportional to 148.39, 205.00 and 117.20 is: 161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.39 : 205.00 = 117.20 : x
  2. Step 2: Convert to fraction form
    148.39/205.00 = 117.20/x
  3. Step 3: Cross multiply
    148.39x = 205.00 × 117.20
  4. Step 4: Simplify right side
    148.39x = 24,026.22
  5. Step 5: Solve for x
    x = 24,026.22/148.39
  6. Step 6: Final answer
    x = 161.92

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.