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Finding the Fourth Proportional to 146,745.60, 220,588.20 and 136,345.20

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Solution

The fourth proportional to 146,745.60, 220,588.20 and 136,345.20 is: 204,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,745.60 : 220,588.20 = 136,345.20 : x
  2. Step 2: Convert to fraction form
    146,745.60/220,588.20 = 136,345.20/x
  3. Step 3: Cross multiply
    146,745.60x = 220,588.20 × 136,345.20
  4. Step 4: Simplify right side
    146,745.60x = 30,076,142,246.64
  5. Step 5: Solve for x
    x = 30,076,142,246.64/146,745.60
  6. Step 6: Final answer
    x = 204,954.30

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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.