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Finding the Fourth Proportional to 201,087.57, 301,668.42 and 66,159.22

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Solution

The fourth proportional to 201,087.57, 301,668.42 and 66,159.22 is: 99,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,087.57 : 301,668.42 = 66,159.22 : x
  2. Step 2: Convert to fraction form
    201,087.57/301,668.42 = 66,159.22/x
  3. Step 3: Cross multiply
    201,087.57x = 301,668.42 × 66,159.22
  4. Step 4: Simplify right side
    201,087.57x = 19,958,147,365.83
  5. Step 5: Solve for x
    x = 19,958,147,365.83/201,087.57
  6. Step 6: Final answer
    x = 99,251.02

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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.