Home / 118,840.16-178,072.72-43,857.12

Finding the Fourth Proportional to 118,840.16, 178,072.72 and 43,857.12

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Solution

The fourth proportional to 118,840.16, 178,072.72 and 43,857.12 is: 65,716.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,840.16 : 178,072.72 = 43,857.12 : x
  2. Step 2: Convert to fraction form
    118,840.16/178,072.72 = 43,857.12/x
  3. Step 3: Cross multiply
    118,840.16x = 178,072.72 × 43,857.12
  4. Step 4: Simplify right side
    118,840.16x = 7,809,756,649.77
  5. Step 5: Solve for x
    x = 7,809,756,649.77/118,840.16
  6. Step 6: Final answer
    x = 65,716.48

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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.