Home / 285,514.08-428,331.24-108,017.20

Finding the Fourth Proportional to 285,514.08, 428,331.24 and 108,017.20

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Solution

The fourth proportional to 285,514.08, 428,331.24 and 108,017.20 is: 162,048.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,514.08 : 428,331.24 = 108,017.20 : x
  2. Step 2: Convert to fraction form
    285,514.08/428,331.24 = 108,017.20/x
  3. Step 3: Cross multiply
    285,514.08x = 428,331.24 × 108,017.20
  4. Step 4: Simplify right side
    285,514.08x = 46,267,141,217.33
  5. Step 5: Solve for x
    x = 46,267,141,217.33/285,514.08
  6. Step 6: Final answer
    x = 162,048.54

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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.