Home / 223,072.08-307,835.64-122,469.36

Finding the Fourth Proportional to 223,072.08, 307,835.64 and 122,469.36

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Solution

The fourth proportional to 223,072.08, 307,835.64 and 122,469.36 is: 169,005.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,072.08 : 307,835.64 = 122,469.36 : x
  2. Step 2: Convert to fraction form
    223,072.08/307,835.64 = 122,469.36/x
  3. Step 3: Cross multiply
    223,072.08x = 307,835.64 × 122,469.36
  4. Step 4: Simplify right side
    223,072.08x = 37,700,433,815.99
  5. Step 5: Solve for x
    x = 37,700,433,815.99/223,072.08
  6. Step 6: Final answer
    x = 169,005.61

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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.