Home / 154,825.26-213,608.38-90,279.89

Finding the Fourth Proportional to 154,825.26, 213,608.38 and 90,279.89

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Solution

The fourth proportional to 154,825.26, 213,608.38 and 90,279.89 is: 124,556.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,825.26 : 213,608.38 = 90,279.89 : x
  2. Step 2: Convert to fraction form
    154,825.26/213,608.38 = 90,279.89/x
  3. Step 3: Cross multiply
    154,825.26x = 213,608.38 × 90,279.89
  4. Step 4: Simplify right side
    154,825.26x = 19,284,541,049.48
  5. Step 5: Solve for x
    x = 19,284,541,049.48/154,825.26
  6. Step 6: Final answer
    x = 124,556.81

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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.