Home / 205,564.37-308,206.23-109,515.95

Finding the Fourth Proportional to 205,564.37, 308,206.23 and 109,515.95

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Solution

The fourth proportional to 205,564.37, 308,206.23 and 109,515.95 is: 164,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,564.37 : 308,206.23 = 109,515.95 : x
  2. Step 2: Convert to fraction form
    205,564.37/308,206.23 = 109,515.95/x
  3. Step 3: Cross multiply
    205,564.37x = 308,206.23 × 109,515.95
  4. Step 4: Simplify right side
    205,564.37x = 33,753,498,074.37
  5. Step 5: Solve for x
    x = 33,753,498,074.37/205,564.37
  6. Step 6: Final answer
    x = 164,199.17

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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.