Home / 124.33-171.54-80.70

Finding the Fourth Proportional to 124.33, 171.54 and 80.70

Calculator

Solution

The fourth proportional to 124.33, 171.54 and 80.70 is: 111.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.33 : 171.54 = 80.70 : x
  2. Step 2: Convert to fraction form
    124.33/171.54 = 80.70/x
  3. Step 3: Cross multiply
    124.33x = 171.54 × 80.70
  4. Step 4: Simplify right side
    124.33x = 13,843.28
  5. Step 5: Solve for x
    x = 13,843.28/124.33
  6. Step 6: Final answer
    x = 111.34

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.