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Finding the Fourth Proportional to 122,289.20, 183,466.20 and 43,395.20

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Solution

The fourth proportional to 122,289.20, 183,466.20 and 43,395.20 is: 65,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,289.20 : 183,466.20 = 43,395.20 : x
  2. Step 2: Convert to fraction form
    122,289.20/183,466.20 = 43,395.20/x
  3. Step 3: Cross multiply
    122,289.20x = 183,466.20 × 43,395.20
  4. Step 4: Simplify right side
    122,289.20x = 7,961,552,442.24
  5. Step 5: Solve for x
    x = 7,961,552,442.24/122,289.20
  6. Step 6: Final answer
    x = 65,104.30

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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.