Home / 118,749.03-178,123.89-28,791.38

Finding the Fourth Proportional to 118,749.03, 178,123.89 and 28,791.38

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Solution

The fourth proportional to 118,749.03, 178,123.89 and 28,791.38 is: 43,187.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,749.03 : 178,123.89 = 28,791.38 : x
  2. Step 2: Convert to fraction form
    118,749.03/178,123.89 = 28,791.38/x
  3. Step 3: Cross multiply
    118,749.03x = 178,123.89 × 28,791.38
  4. Step 4: Simplify right side
    118,749.03x = 5,128,432,914.42
  5. Step 5: Solve for x
    x = 5,128,432,914.42/118,749.03
  6. Step 6: Final answer
    x = 43,187.16

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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.