Home / 118,917.05-178,374.36-40,030.75

Finding the Fourth Proportional to 118,917.05, 178,374.36 and 40,030.75

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Solution

The fourth proportional to 118,917.05, 178,374.36 and 40,030.75 is: 60,045.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,917.05 : 178,374.36 = 40,030.75 : x
  2. Step 2: Convert to fraction form
    118,917.05/178,374.36 = 40,030.75/x
  3. Step 3: Cross multiply
    118,917.05x = 178,374.36 × 40,030.75
  4. Step 4: Simplify right side
    118,917.05x = 7,140,458,519.70
  5. Step 5: Solve for x
    x = 7,140,458,519.70/118,917.05
  6. Step 6: Final answer
    x = 60,045.71

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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.