Finding the Fourth Proportional to 138,798.19, 208,198.99 and 48,843.59
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Solution
The fourth proportional to 138,798.19, 208,198.99 and 48,843.59 is: 73,265.98
Step by Step Solution
- Step 1: Write the proportion equation
138,798.19 : 208,198.99 = 48,843.59 : x - Step 2: Convert to fraction form
138,798.19/208,198.99 = 48,843.59/x - Step 3: Cross multiply
138,798.19x = 208,198.99 × 48,843.59 - Step 4: Simplify right side
138,798.19x = 10,169,184,942.87 - Step 5: Solve for x
x = 10,169,184,942.87/138,798.19 - Step 6: Final answer
x = 73,265.98
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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.