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Finding the Fourth Proportional to 133,290.78, 199,668.33 and 63,237.66

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Solution

The fourth proportional to 133,290.78, 199,668.33 and 63,237.66 is: 94,729.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,290.78 : 199,668.33 = 63,237.66 : x
  2. Step 2: Convert to fraction form
    133,290.78/199,668.33 = 63,237.66/x
  3. Step 3: Cross multiply
    133,290.78x = 199,668.33 × 63,237.66
  4. Step 4: Simplify right side
    133,290.78x = 12,626,557,965.31
  5. Step 5: Solve for x
    x = 12,626,557,965.31/133,290.78
  6. Step 6: Final answer
    x = 94,729.42

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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.