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Finding the Fourth Proportional to 146,745.75, 220,150.20 and 45,541.80

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Solution

The fourth proportional to 146,745.75, 220,150.20 and 45,541.80 is: 68,322.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,745.75 : 220,150.20 = 45,541.80 : x
  2. Step 2: Convert to fraction form
    146,745.75/220,150.20 = 45,541.80/x
  3. Step 3: Cross multiply
    146,745.75x = 220,150.20 × 45,541.80
  4. Step 4: Simplify right side
    146,745.75x = 10,026,036,378.36
  5. Step 5: Solve for x
    x = 10,026,036,378.36/146,745.75
  6. Step 6: Final answer
    x = 68,322.50

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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.