Home / 124.24-170.46-121.04

Finding the Fourth Proportional to 124.24, 170.46 and 121.04

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Solution

The fourth proportional to 124.24, 170.46 and 121.04 is: 166.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.24 : 170.46 = 121.04 : x
  2. Step 2: Convert to fraction form
    124.24/170.46 = 121.04/x
  3. Step 3: Cross multiply
    124.24x = 170.46 × 121.04
  4. Step 4: Simplify right side
    124.24x = 20,632.48
  5. Step 5: Solve for x
    x = 20,632.48/124.24
  6. Step 6: Final answer
    x = 166.07

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.