Home / 118,741.31-178,112.33-28,783.67

Finding the Fourth Proportional to 118,741.31, 178,112.33 and 28,783.67

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Solution

The fourth proportional to 118,741.31, 178,112.33 and 28,783.67 is: 43,175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,741.31 : 178,112.33 = 28,783.67 : x
  2. Step 2: Convert to fraction form
    118,741.31/178,112.33 = 28,783.67/x
  3. Step 3: Cross multiply
    118,741.31x = 178,112.33 × 28,783.67
  4. Step 4: Simplify right side
    118,741.31x = 5,126,726,604.99
  5. Step 5: Solve for x
    x = 5,126,726,604.99/118,741.31
  6. Step 6: Final answer
    x = 43,175.59

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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.