Home / 145,107.48-217,708.26-71,183.64

Finding the Fourth Proportional to 145,107.48, 217,708.26 and 71,183.64

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Solution

The fourth proportional to 145,107.48, 217,708.26 and 71,183.64 is: 106,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,107.48 : 217,708.26 = 71,183.64 : x
  2. Step 2: Convert to fraction form
    145,107.48/217,708.26 = 71,183.64/x
  3. Step 3: Cross multiply
    145,107.48x = 217,708.26 × 71,183.64
  4. Step 4: Simplify right side
    145,107.48x = 15,497,266,404.87
  5. Step 5: Solve for x
    x = 15,497,266,404.87/145,107.48
  6. Step 6: Final answer
    x = 106,798.54

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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.