Home / 204,021.60-306,075.60-61,855.20

Finding the Fourth Proportional to 204,021.60, 306,075.60 and 61,855.20

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Solution

The fourth proportional to 204,021.60, 306,075.60 and 61,855.20 is: 92,795.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,021.60 : 306,075.60 = 61,855.20 : x
  2. Step 2: Convert to fraction form
    204,021.60/306,075.60 = 61,855.20/x
  3. Step 3: Cross multiply
    204,021.60x = 306,075.60 × 61,855.20
  4. Step 4: Simplify right side
    204,021.60x = 18,932,367,453.12
  5. Step 5: Solve for x
    x = 18,932,367,453.12/204,021.60
  6. Step 6: Final answer
    x = 92,795.90

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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.