Home / 78,197.41-117,278.13-46,616.39

Finding the Fourth Proportional to 78,197.41, 117,278.13 and 46,616.39

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Solution

The fourth proportional to 78,197.41, 117,278.13 and 46,616.39 is: 69,913.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,197.41 : 117,278.13 = 46,616.39 : x
  2. Step 2: Convert to fraction form
    78,197.41/117,278.13 = 46,616.39/x
  3. Step 3: Cross multiply
    78,197.41x = 117,278.13 × 46,616.39
  4. Step 4: Simplify right side
    78,197.41x = 5,467,083,046.55
  5. Step 5: Solve for x
    x = 5,467,083,046.55/78,197.41
  6. Step 6: Final answer
    x = 69,913.86

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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.