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Finding the Fourth Proportional to 119,830.54, 179,745.87 and 40,945.54

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Solution

The fourth proportional to 119,830.54, 179,745.87 and 40,945.54 is: 61,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,830.54 : 179,745.87 = 40,945.54 : x
  2. Step 2: Convert to fraction form
    119,830.54/179,745.87 = 40,945.54/x
  3. Step 3: Cross multiply
    119,830.54x = 179,745.87 × 40,945.54
  4. Step 4: Simplify right side
    119,830.54x = 7,359,791,709.92
  5. Step 5: Solve for x
    x = 7,359,791,709.92/119,830.54
  6. Step 6: Final answer
    x = 61,418.33

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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.