Home / 166,021.11-248,803.25-71,137.71

Finding the Fourth Proportional to 166,021.11, 248,803.25 and 71,137.71

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Solution

The fourth proportional to 166,021.11, 248,803.25 and 71,137.71 is: 106,608.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,021.11 : 248,803.25 = 71,137.71 : x
  2. Step 2: Convert to fraction form
    166,021.11/248,803.25 = 71,137.71/x
  3. Step 3: Cross multiply
    166,021.11x = 248,803.25 × 71,137.71
  4. Step 4: Simplify right side
    166,021.11x = 17,699,293,089.87
  5. Step 5: Solve for x
    x = 17,699,293,089.87/166,021.11
  6. Step 6: Final answer
    x = 106,608.69

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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.