Finding the Fourth Proportional to 108,198.81, 149,370.35 and 74,606.49
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Solution
The fourth proportional to 108,198.81, 149,370.35 and 74,606.49 is: 102,995.56
Step by Step Solution
- Step 1: Write the proportion equation
108,198.81 : 149,370.35 = 74,606.49 : x - Step 2: Convert to fraction form
108,198.81/149,370.35 = 74,606.49/x - Step 3: Cross multiply
108,198.81x = 149,370.35 × 74,606.49 - Step 4: Simplify right side
108,198.81x = 11,143,997,150.54 - Step 5: Solve for x
x = 11,143,997,150.54/108,198.81 - Step 6: Final answer
x = 102,995.56
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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.