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Finding the Fourth Proportional to 118,374.98, 177,571.71 and 39,489.12

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Solution

The fourth proportional to 118,374.98, 177,571.71 and 39,489.12 is: 59,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,374.98 : 177,571.71 = 39,489.12 : x
  2. Step 2: Convert to fraction form
    118,374.98/177,571.71 = 39,489.12/x
  3. Step 3: Cross multiply
    118,374.98x = 177,571.71 × 39,489.12
  4. Step 4: Simplify right side
    118,374.98x = 7,012,150,564.80
  5. Step 5: Solve for x
    x = 7,012,150,564.80/118,374.98
  6. Step 6: Final answer
    x = 59,236.76

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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.