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Finding the Fourth Proportional to 141,969, 212,907.41 and 47,173.73

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Solution

The fourth proportional to 141,969, 212,907.41 and 47,173.73 is: 70,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,969 : 212,907.41 = 47,173.73 : x
  2. Step 2: Convert to fraction form
    141,969/212,907.41 = 47,173.73/x
  3. Step 3: Cross multiply
    141,969x = 212,907.41 × 47,173.73
  4. Step 4: Simplify right side
    141,969x = 10,043,636,438.47
  5. Step 5: Solve for x
    x = 10,043,636,438.47/141,969
  6. Step 6: Final answer
    x = 70,745.28

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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.