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Finding the Fourth Proportional to 144,288.84, 199,119.60 and 80,629.32

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Solution

The fourth proportional to 144,288.84, 199,119.60 and 80,629.32 is: 111,269.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,288.84 : 199,119.60 = 80,629.32 : x
  2. Step 2: Convert to fraction form
    144,288.84/199,119.60 = 80,629.32/x
  3. Step 3: Cross multiply
    144,288.84x = 199,119.60 × 80,629.32
  4. Step 4: Simplify right side
    144,288.84x = 16,054,877,946.67
  5. Step 5: Solve for x
    x = 16,054,877,946.67/144,288.84
  6. Step 6: Final answer
    x = 111,269.02

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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.