Home / 78,161.00-117,238.76-33,153.45

Finding the Fourth Proportional to 78,161.00, 117,238.76 and 33,153.45

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Solution

The fourth proportional to 78,161.00, 117,238.76 and 33,153.45 is: 49,729.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,161.00 : 117,238.76 = 33,153.45 : x
  2. Step 2: Convert to fraction form
    78,161.00/117,238.76 = 33,153.45/x
  3. Step 3: Cross multiply
    78,161.00x = 117,238.76 × 33,153.45
  4. Step 4: Simplify right side
    78,161.00x = 3,886,869,201.95
  5. Step 5: Solve for x
    x = 3,886,869,201.95/78,161.00
  6. Step 6: Final answer
    x = 49,729.01

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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.