Home / 124.45-186.68-52.31

Finding the Fourth Proportional to 124.45, 186.68 and 52.31

Calculator

Solution

The fourth proportional to 124.45, 186.68 and 52.31 is: 78.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.45 : 186.68 = 52.31 : x
  2. Step 2: Convert to fraction form
    124.45/186.68 = 52.31/x
  3. Step 3: Cross multiply
    124.45x = 186.68 × 52.31
  4. Step 4: Simplify right side
    124.45x = 9,765.83
  5. Step 5: Solve for x
    x = 9,765.83/124.45
  6. Step 6: Final answer
    x = 78.47

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.