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Finding the Fourth Proportional to 122,152.40, 183,163.80 and 43,269.20

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Solution

The fourth proportional to 122,152.40, 183,163.80 and 43,269.20 is: 64,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,152.40 : 183,163.80 = 43,269.20 : x
  2. Step 2: Convert to fraction form
    122,152.40/183,163.80 = 43,269.20/x
  3. Step 3: Cross multiply
    122,152.40x = 183,163.80 × 43,269.20
  4. Step 4: Simplify right side
    122,152.40x = 7,925,351,094.96
  5. Step 5: Solve for x
    x = 7,925,351,094.96/122,152.40
  6. Step 6: Final answer
    x = 64,880.85

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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.