Home / 205,583.25-308,420.24-87,355.65

Finding the Fourth Proportional to 205,583.25, 308,420.24 and 87,355.65

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Solution

The fourth proportional to 205,583.25, 308,420.24 and 87,355.65 is: 131,052.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,583.25 : 308,420.24 = 87,355.65 : x
  2. Step 2: Convert to fraction form
    205,583.25/308,420.24 = 87,355.65/x
  3. Step 3: Cross multiply
    205,583.25x = 308,420.24 × 87,355.65
  4. Step 4: Simplify right side
    205,583.25x = 26,942,250,101.58
  5. Step 5: Solve for x
    x = 26,942,250,101.58/205,583.25
  6. Step 6: Final answer
    x = 131,052.75

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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.