Finding the Fourth Proportional to 163,584.10, 245,201.18 and 74,704.42
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Solution
The fourth proportional to 163,584.10, 245,201.18 and 74,704.42 is: 111,976.72
Step by Step Solution
- Step 1: Write the proportion equation
163,584.10 : 245,201.18 = 74,704.42 : x - Step 2: Convert to fraction form
163,584.10/245,201.18 = 74,704.42/x - Step 3: Cross multiply
163,584.10x = 245,201.18 × 74,704.42 - Step 4: Simplify right side
163,584.10x = 18,317,610,709.21 - Step 5: Solve for x
x = 18,317,610,709.21/163,584.10 - Step 6: Final answer
x = 111,976.72
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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.