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Finding the Fourth Proportional to 144,290.92, 199,117.65 and 80,629.24

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Solution

The fourth proportional to 144,290.92, 199,117.65 and 80,629.24 is: 111,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,290.92 : 199,117.65 = 80,629.24 : x
  2. Step 2: Convert to fraction form
    144,290.92/199,117.65 = 80,629.24/x
  3. Step 3: Cross multiply
    144,290.92x = 199,117.65 × 80,629.24
  4. Step 4: Simplify right side
    144,290.92x = 16,054,704,790.09
  5. Step 5: Solve for x
    x = 16,054,704,790.09/144,290.92
  6. Step 6: Final answer
    x = 111,266.22

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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.