Home / 118,836.28-178,252.52-28,879.72

Finding the Fourth Proportional to 118,836.28, 178,252.52 and 28,879.72

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Solution

The fourth proportional to 118,836.28, 178,252.52 and 28,879.72 is: 43,319.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,836.28 : 178,252.52 = 28,879.72 : x
  2. Step 2: Convert to fraction form
    118,836.28/178,252.52 = 28,879.72/x
  3. Step 3: Cross multiply
    118,836.28x = 178,252.52 × 28,879.72
  4. Step 4: Simplify right side
    118,836.28x = 5,147,882,866.89
  5. Step 5: Solve for x
    x = 5,147,882,866.89/118,836.28
  6. Step 6: Final answer
    x = 43,319.12

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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.