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Finding the Fourth Proportional to 122,270.40, 183,405.60 and 43,392.60

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Solution

The fourth proportional to 122,270.40, 183,405.60 and 43,392.60 is: 65,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,270.40 : 183,405.60 = 43,392.60 : x
  2. Step 2: Convert to fraction form
    122,270.40/183,405.60 = 43,392.60/x
  3. Step 3: Cross multiply
    122,270.40x = 183,405.60 × 43,392.60
  4. Step 4: Simplify right side
    122,270.40x = 7,958,445,838.56
  5. Step 5: Solve for x
    x = 7,958,445,838.56/122,270.40
  6. Step 6: Final answer
    x = 65,088.90

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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.