Home / 165,787.94-228,789.08-90,336.44

Finding the Fourth Proportional to 165,787.94, 228,789.08 and 90,336.44

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Solution

The fourth proportional to 165,787.94, 228,789.08 and 90,336.44 is: 124,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,787.94 : 228,789.08 = 90,336.44 : x
  2. Step 2: Convert to fraction form
    165,787.94/228,789.08 = 90,336.44/x
  3. Step 3: Cross multiply
    165,787.94x = 228,789.08 × 90,336.44
  4. Step 4: Simplify right side
    165,787.94x = 20,667,989,402.45
  5. Step 5: Solve for x
    x = 20,667,989,402.45/165,787.94
  6. Step 6: Final answer
    x = 124,665.22

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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.