Home / 109,591.20-164,208.60-99,093.60

Finding the Fourth Proportional to 109,591.20, 164,208.60 and 99,093.60

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Solution

The fourth proportional to 109,591.20, 164,208.60 and 99,093.60 is: 148,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,591.20 : 164,208.60 = 99,093.60 : x
  2. Step 2: Convert to fraction form
    109,591.20/164,208.60 = 99,093.60/x
  3. Step 3: Cross multiply
    109,591.20x = 164,208.60 × 99,093.60
  4. Step 4: Simplify right side
    109,591.20x = 16,272,021,324.96
  5. Step 5: Solve for x
    x = 16,272,021,324.96/109,591.20
  6. Step 6: Final answer
    x = 148,479.27

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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.