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Finding the Fourth Proportional to 146,745.60, 220,118.40 and 137,997.60

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Solution

The fourth proportional to 146,745.60, 220,118.40 and 137,997.60 is: 206,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,745.60 : 220,118.40 = 137,997.60 : x
  2. Step 2: Convert to fraction form
    146,745.60/220,118.40 = 137,997.60/x
  3. Step 3: Cross multiply
    146,745.60x = 220,118.40 × 137,997.60
  4. Step 4: Simplify right side
    146,745.60x = 30,375,810,915.84
  5. Step 5: Solve for x
    x = 30,375,810,915.84/146,745.60
  6. Step 6: Final answer
    x = 206,996.40

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1.5x scale

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.