Finding the Fourth Proportional to 100,176.73, 138,247.18 and 54,856.62
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Solution
The fourth proportional to 100,176.73, 138,247.18 and 54,856.62 is: 75,703.94
Step by Step Solution
- Step 1: Write the proportion equation
100,176.73 : 138,247.18 = 54,856.62 : x - Step 2: Convert to fraction form
100,176.73/138,247.18 = 54,856.62/x - Step 3: Cross multiply
100,176.73x = 138,247.18 × 54,856.62 - Step 4: Simplify right side
100,176.73x = 7,583,773,019.33 - Step 5: Solve for x
x = 7,583,773,019.33/100,176.73 - Step 6: Final answer
x = 75,703.94
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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.