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Finding the Fourth Proportional to 201,083.87, 301,662.89 and 66,155.53

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Solution

The fourth proportional to 201,083.87, 301,662.89 and 66,155.53 is: 99,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,083.87 : 301,662.89 = 66,155.53 : x
  2. Step 2: Convert to fraction form
    201,083.87/301,662.89 = 66,155.53/x
  3. Step 3: Cross multiply
    201,083.87x = 301,662.89 × 66,155.53
  4. Step 4: Simplify right side
    201,083.87x = 19,956,668,369.28
  5. Step 5: Solve for x
    x = 19,956,668,369.28/201,083.87
  6. Step 6: Final answer
    x = 99,245.50

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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.