Finding the Fourth Proportional to 120,998.48, 181,497.72 and 49,920.08
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Solution
The fourth proportional to 120,998.48, 181,497.72 and 49,920.08 is: 74,880.12
Step by Step Solution
- Step 1: Write the proportion equation
120,998.48 : 181,497.72 = 49,920.08 : x - Step 2: Convert to fraction form
120,998.48/181,497.72 = 49,920.08/x - Step 3: Cross multiply
120,998.48x = 181,497.72 × 49,920.08 - Step 4: Simplify right side
120,998.48x = 9,060,380,702.22 - Step 5: Solve for x
x = 9,060,380,702.22/120,998.48 - Step 6: Final answer
x = 74,880.12
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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.