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Finding the Fourth Proportional to 147,392.62, 221,135.65 and 52,620.73

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Solution

The fourth proportional to 147,392.62, 221,135.65 and 52,620.73 is: 78,947.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,392.62 : 221,135.65 = 52,620.73 : x
  2. Step 2: Convert to fraction form
    147,392.62/221,135.65 = 52,620.73/x
  3. Step 3: Cross multiply
    147,392.62x = 221,135.65 × 52,620.73
  4. Step 4: Simplify right side
    147,392.62x = 11,636,318,647.63
  5. Step 5: Solve for x
    x = 11,636,318,647.63/147,392.62
  6. Step 6: Final answer
    x = 78,947.77

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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.