Home / 205,552.80-308,352.88-79,163.60

Finding the Fourth Proportional to 205,552.80, 308,352.88 and 79,163.60

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Solution

The fourth proportional to 205,552.80, 308,352.88 and 79,163.60 is: 118,754.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,552.80 : 308,352.88 = 79,163.60 : x
  2. Step 2: Convert to fraction form
    205,552.80/308,352.88 = 79,163.60/x
  3. Step 3: Cross multiply
    205,552.80x = 308,352.88 × 79,163.60
  4. Step 4: Simplify right side
    205,552.80x = 24,410,324,051.17
  5. Step 5: Solve for x
    x = 24,410,324,051.17/205,552.80
  6. Step 6: Final answer
    x = 118,754.52

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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.