Home / 146,912.64-220,073.69-76,644.33

Finding the Fourth Proportional to 146,912.64, 220,073.69 and 76,644.33

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Solution

The fourth proportional to 146,912.64, 220,073.69 and 76,644.33 is: 114,812.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,912.64 : 220,073.69 = 76,644.33 : x
  2. Step 2: Convert to fraction form
    146,912.64/220,073.69 = 76,644.33/x
  3. Step 3: Cross multiply
    146,912.64x = 220,073.69 × 76,644.33
  4. Step 4: Simplify right side
    146,912.64x = 16,867,399,887.01
  5. Step 5: Solve for x
    x = 16,867,399,887.01/146,912.64
  6. Step 6: Final answer
    x = 114,812.45

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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.