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Finding the Fourth Proportional to 118,338.87, 177,509.87 and 39,453.12

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Solution

The fourth proportional to 118,338.87, 177,509.87 and 39,453.12 is: 59,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,338.87 : 177,509.87 = 39,453.12 : x
  2. Step 2: Convert to fraction form
    118,338.87/177,509.87 = 39,453.12/x
  3. Step 3: Cross multiply
    118,338.87x = 177,509.87 × 39,453.12
  4. Step 4: Simplify right side
    118,338.87x = 7,003,318,152.98
  5. Step 5: Solve for x
    x = 7,003,318,152.98/118,338.87
  6. Step 6: Final answer
    x = 59,180.20

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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.