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Finding the Fourth Proportional to 130,379.81, 179,893.30 and 73,791.19

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Solution

The fourth proportional to 130,379.81, 179,893.30 and 73,791.19 is: 101,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,379.81 : 179,893.30 = 73,791.19 : x
  2. Step 2: Convert to fraction form
    130,379.81/179,893.30 = 73,791.19/x
  3. Step 3: Cross multiply
    130,379.81x = 179,893.30 × 73,791.19
  4. Step 4: Simplify right side
    130,379.81x = 13,274,540,680.03
  5. Step 5: Solve for x
    x = 13,274,540,680.03/130,379.81
  6. Step 6: Final answer
    x = 101,814.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.