Finding the Fourth Proportional to 135,183.72, 202,950.87 and 90,491.00
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Solution
The fourth proportional to 135,183.72, 202,950.87 and 90,491.00 is: 135,853.85
Step by Step Solution
- Step 1: Write the proportion equation
135,183.72 : 202,950.87 = 90,491.00 : x - Step 2: Convert to fraction form
135,183.72/202,950.87 = 90,491.00/x - Step 3: Cross multiply
135,183.72x = 202,950.87 × 90,491.00 - Step 4: Simplify right side
135,183.72x = 18,365,227,684.55 - Step 5: Solve for x
x = 18,365,227,684.55/135,183.72 - Step 6: Final answer
x = 135,853.85
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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.