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Finding the Fourth Proportional to 118,940.45, 178,410.67 and 40,048.07

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Solution

The fourth proportional to 118,940.45, 178,410.67 and 40,048.07 is: 60,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,940.45 : 178,410.67 = 40,048.07 : x
  2. Step 2: Convert to fraction form
    118,940.45/178,410.67 = 40,048.07/x
  3. Step 3: Cross multiply
    118,940.45x = 178,410.67 × 40,048.07
  4. Step 4: Simplify right side
    118,940.45x = 7,145,002,008.73
  5. Step 5: Solve for x
    x = 7,145,002,008.73/118,940.45
  6. Step 6: Final answer
    x = 60,072.10

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1.5x scale

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.