Home / 118,960.20-178,383.78-69,055.60

Finding the Fourth Proportional to 118,960.20, 178,383.78 and 69,055.60

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Solution

The fourth proportional to 118,960.20, 178,383.78 and 69,055.60 is: 103,550.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,960.20 : 178,383.78 = 69,055.60 : x
  2. Step 2: Convert to fraction form
    118,960.20/178,383.78 = 69,055.60/x
  3. Step 3: Cross multiply
    118,960.20x = 178,383.78 × 69,055.60
  4. Step 4: Simplify right side
    118,960.20x = 12,318,398,958.17
  5. Step 5: Solve for x
    x = 12,318,398,958.17/118,960.20
  6. Step 6: Final answer
    x = 103,550.59

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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.