Finding the Fourth Proportional to 102,207.21, 153,336.12 and 48,939.72
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Solution
The fourth proportional to 102,207.21, 153,336.12 and 48,939.72 is: 73,421.70
Step by Step Solution
- Step 1: Write the proportion equation
102,207.21 : 153,336.12 = 48,939.72 : x - Step 2: Convert to fraction form
102,207.21/153,336.12 = 48,939.72/x - Step 3: Cross multiply
102,207.21x = 153,336.12 × 48,939.72 - Step 4: Simplify right side
102,207.21x = 7,504,226,778.69 - Step 5: Solve for x
x = 7,504,226,778.69/102,207.21 - Step 6: Final answer
x = 73,421.70
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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.