Home / 118,945.88-178,419.12-40,115.46

Finding the Fourth Proportional to 118,945.88, 178,419.12 and 40,115.46

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Solution

The fourth proportional to 118,945.88, 178,419.12 and 40,115.46 is: 60,173.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,945.88 : 178,419.12 = 40,115.46 : x
  2. Step 2: Convert to fraction form
    118,945.88/178,419.12 = 40,115.46/x
  3. Step 3: Cross multiply
    118,945.88x = 178,419.12 × 40,115.46
  4. Step 4: Simplify right side
    118,945.88x = 7,157,365,071.60
  5. Step 5: Solve for x
    x = 7,157,365,071.60/118,945.88
  6. Step 6: Final answer
    x = 60,173.29

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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.