Finding the Fourth Proportional to 102,163.75, 153,245.63 and 28,291.75
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Solution
The fourth proportional to 102,163.75, 153,245.63 and 28,291.75 is: 42,437.63
Step by Step Solution
- Step 1: Write the proportion equation
102,163.75 : 153,245.63 = 28,291.75 : x - Step 2: Convert to fraction form
102,163.75/153,245.63 = 28,291.75/x - Step 3: Cross multiply
102,163.75x = 153,245.63 × 28,291.75 - Step 4: Simplify right side
102,163.75x = 4,335,587,052.55 - Step 5: Solve for x
x = 4,335,587,052.55/102,163.75 - Step 6: Final answer
x = 42,437.63
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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.