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Finding the Fourth Proportional to 144,362.44, 199,219.50 and 80,699.80

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Solution

The fourth proportional to 144,362.44, 199,219.50 and 80,699.80 is: 111,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,362.44 : 199,219.50 = 80,699.80 : x
  2. Step 2: Convert to fraction form
    144,362.44/199,219.50 = 80,699.80/x
  3. Step 3: Cross multiply
    144,362.44x = 199,219.50 × 80,699.80
  4. Step 4: Simplify right side
    144,362.44x = 16,076,973,806.10
  5. Step 5: Solve for x
    x = 16,076,973,806.10/144,362.44
  6. Step 6: Final answer
    x = 111,365.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.