Home / 205,521.98-308,072.76-104,132.21

Finding the Fourth Proportional to 205,521.98, 308,072.76 and 104,132.21

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Solution

The fourth proportional to 205,521.98, 308,072.76 and 104,132.21 is: 156,091.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,521.98 : 308,072.76 = 104,132.21 : x
  2. Step 2: Convert to fraction form
    205,521.98/308,072.76 = 104,132.21/x
  3. Step 3: Cross multiply
    205,521.98x = 308,072.76 × 104,132.21
  4. Step 4: Simplify right side
    205,521.98x = 32,080,297,339.60
  5. Step 5: Solve for x
    x = 32,080,297,339.60/205,521.98
  6. Step 6: Final answer
    x = 156,091.81

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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.