Home / 118,902.42-178,353.27-30,155.72

Finding the Fourth Proportional to 118,902.42, 178,353.27 and 30,155.72

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Solution

The fourth proportional to 118,902.42, 178,353.27 and 30,155.72 is: 45,233.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,902.42 : 178,353.27 = 30,155.72 : x
  2. Step 2: Convert to fraction form
    118,902.42/178,353.27 = 30,155.72/x
  3. Step 3: Cross multiply
    118,902.42x = 178,353.27 × 30,155.72
  4. Step 4: Simplify right side
    118,902.42x = 5,378,370,379.44
  5. Step 5: Solve for x
    x = 5,378,370,379.44/118,902.42
  6. Step 6: Final answer
    x = 45,233.48

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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.