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Finding the Fourth Proportional to 146,813.20, 220,219.80 and 120,893.20

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Solution

The fourth proportional to 146,813.20, 220,219.80 and 120,893.20 is: 181,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,813.20 : 220,219.80 = 120,893.20 : x
  2. Step 2: Convert to fraction form
    146,813.20/220,219.80 = 120,893.20/x
  3. Step 3: Cross multiply
    146,813.20x = 220,219.80 × 120,893.20
  4. Step 4: Simplify right side
    146,813.20x = 26,623,076,325.36
  5. Step 5: Solve for x
    x = 26,623,076,325.36/146,813.20
  6. Step 6: Final answer
    x = 181,339.80

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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.