Home / 118,821.62-178,254.91-47,749.79

Finding the Fourth Proportional to 118,821.62, 178,254.91 and 47,749.79

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Solution

The fourth proportional to 118,821.62, 178,254.91 and 47,749.79 is: 71,633.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,821.62 : 178,254.91 = 47,749.79 : x
  2. Step 2: Convert to fraction form
    118,821.62/178,254.91 = 47,749.79/x
  3. Step 3: Cross multiply
    118,821.62x = 178,254.91 × 47,749.79
  4. Step 4: Simplify right side
    118,821.62x = 8,511,634,518.97
  5. Step 5: Solve for x
    x = 8,511,634,518.97/118,821.62
  6. Step 6: Final answer
    x = 71,633.72

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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.