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Finding the Fourth Proportional to 141,929, 212,893.50 and 79,604.36

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Solution

The fourth proportional to 141,929, 212,893.50 and 79,604.36 is: 119,406.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,929 : 212,893.50 = 79,604.36 : x
  2. Step 2: Convert to fraction form
    141,929/212,893.50 = 79,604.36/x
  3. Step 3: Cross multiply
    141,929x = 212,893.50 × 79,604.36
  4. Step 4: Simplify right side
    141,929x = 16,947,250,815.66
  5. Step 5: Solve for x
    x = 16,947,250,815.66/141,929
  6. Step 6: Final answer
    x = 119,406.54

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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.