Home / 285,523.03-428,289.44-108,113.59

Finding the Fourth Proportional to 285,523.03, 428,289.44 and 108,113.59

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Solution

The fourth proportional to 285,523.03, 428,289.44 and 108,113.59 is: 162,172.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,523.03 : 428,289.44 = 108,113.59 : x
  2. Step 2: Convert to fraction form
    285,523.03/428,289.44 = 108,113.59/x
  3. Step 3: Cross multiply
    285,523.03x = 428,289.44 × 108,113.59
  4. Step 4: Simplify right side
    285,523.03x = 46,303,907,306.20
  5. Step 5: Solve for x
    x = 46,303,907,306.20/285,523.03
  6. Step 6: Final answer
    x = 162,172.23

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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.