Home / 108,917.40-163,408.92-38,787.60

Finding the Fourth Proportional to 108,917.40, 163,408.92 and 38,787.60

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Solution

The fourth proportional to 108,917.40, 163,408.92 and 38,787.60 is: 58,193.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,917.40 : 163,408.92 = 38,787.60 : x
  2. Step 2: Convert to fraction form
    108,917.40/163,408.92 = 38,787.60/x
  3. Step 3: Cross multiply
    108,917.40x = 163,408.92 × 38,787.60
  4. Step 4: Simplify right side
    108,917.40x = 6,338,239,825.39
  5. Step 5: Solve for x
    x = 6,338,239,825.39/108,917.40
  6. Step 6: Final answer
    x = 58,193.09

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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.