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Finding the Fourth Proportional to 104,090.00, 155,747.71 and 91,379.85

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Solution

The fourth proportional to 104,090.00, 155,747.71 and 91,379.85 is: 136,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,090.00 : 155,747.71 = 91,379.85 : x
  2. Step 2: Convert to fraction form
    104,090.00/155,747.71 = 91,379.85/x
  3. Step 3: Cross multiply
    104,090.00x = 155,747.71 × 91,379.85
  4. Step 4: Simplify right side
    104,090.00x = 14,232,201,907.81
  5. Step 5: Solve for x
    x = 14,232,201,907.81/104,090.00
  6. Step 6: Final answer
    x = 136,729.78

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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.