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Finding the Fourth Proportional to 146,737.60, 220,106.40 and 137,989.60

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Solution

The fourth proportional to 146,737.60, 220,106.40 and 137,989.60 is: 206,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,737.60 : 220,106.40 = 137,989.60 : x
  2. Step 2: Convert to fraction form
    146,737.60/220,106.40 = 137,989.60/x
  3. Step 3: Cross multiply
    146,737.60x = 220,106.40 × 137,989.60
  4. Step 4: Simplify right side
    146,737.60x = 30,372,394,093.44
  5. Step 5: Solve for x
    x = 30,372,394,093.44/146,737.60
  6. Step 6: Final answer
    x = 206,984.40

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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.