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Finding the Fourth Proportional to 148,358.70, 204,735.44 and 80,375.36

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Solution

The fourth proportional to 148,358.70, 204,735.44 and 80,375.36 is: 110,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,358.70 : 204,735.44 = 80,375.36 : x
  2. Step 2: Convert to fraction form
    148,358.70/204,735.44 = 80,375.36/x
  3. Step 3: Cross multiply
    148,358.70x = 204,735.44 × 80,375.36
  4. Step 4: Simplify right side
    148,358.70x = 16,455,683,872.02
  5. Step 5: Solve for x
    x = 16,455,683,872.02/148,358.70
  6. Step 6: Final answer
    x = 110,918.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.