Home / 118,845.24-178,147.83-74,503.08

Finding the Fourth Proportional to 118,845.24, 178,147.83 and 74,503.08

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Solution

The fourth proportional to 118,845.24, 178,147.83 and 74,503.08 is: 111,679.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,845.24 : 178,147.83 = 74,503.08 : x
  2. Step 2: Convert to fraction form
    118,845.24/178,147.83 = 74,503.08/x
  3. Step 3: Cross multiply
    118,845.24x = 178,147.83 × 74,503.08
  4. Step 4: Simplify right side
    118,845.24x = 13,272,562,030.32
  5. Step 5: Solve for x
    x = 13,272,562,030.32/118,845.24
  6. Step 6: Final answer
    x = 111,679.37

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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.