Finding the Fourth Proportional to 120,827.44, 181,356.48 and 74,171.44
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Solution
The fourth proportional to 120,827.44, 181,356.48 and 74,171.44 is: 111,327.95
Step by Step Solution
- Step 1: Write the proportion equation
120,827.44 : 181,356.48 = 74,171.44 : x - Step 2: Convert to fraction form
120,827.44/181,356.48 = 74,171.44/x - Step 3: Cross multiply
120,827.44x = 181,356.48 × 74,171.44 - Step 4: Simplify right side
120,827.44x = 13,451,471,274.93 - Step 5: Solve for x
x = 13,451,471,274.93/120,827.44 - Step 6: Final answer
x = 111,327.95
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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.