Home / 118,408.97-163,349.56-68,078.81

Finding the Fourth Proportional to 118,408.97, 163,349.56 and 68,078.81

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Solution

The fourth proportional to 118,408.97, 163,349.56 and 68,078.81 is: 93,917.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,408.97 : 163,349.56 = 68,078.81 : x
  2. Step 2: Convert to fraction form
    118,408.97/163,349.56 = 68,078.81/x
  3. Step 3: Cross multiply
    118,408.97x = 163,349.56 × 68,078.81
  4. Step 4: Simplify right side
    118,408.97x = 11,120,644,152.30
  5. Step 5: Solve for x
    x = 11,120,644,152.30/118,408.97
  6. Step 6: Final answer
    x = 93,917.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.