Finding the Fourth Proportional to 107,797.40, 161,780.86 and 74,750.02
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Solution
The fourth proportional to 107,797.40, 161,780.86 and 74,750.02 is: 112,183.81
Step by Step Solution
- Step 1: Write the proportion equation
107,797.40 : 161,780.86 = 74,750.02 : x - Step 2: Convert to fraction form
107,797.40/161,780.86 = 74,750.02/x - Step 3: Cross multiply
107,797.40x = 161,780.86 × 74,750.02 - Step 4: Simplify right side
107,797.40x = 12,093,122,520.62 - Step 5: Solve for x
x = 12,093,122,520.62/107,797.40 - Step 6: Final answer
x = 112,183.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.