Finding the Fourth Proportional to 113,390.26, 156,497.74 and 65,672.62
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Solution
The fourth proportional to 113,390.26, 156,497.74 and 65,672.62 is: 90,639.32
Step by Step Solution
- Step 1: Write the proportion equation
113,390.26 : 156,497.74 = 65,672.62 : x - Step 2: Convert to fraction form
113,390.26/156,497.74 = 65,672.62/x - Step 3: Cross multiply
113,390.26x = 156,497.74 × 65,672.62 - Step 4: Simplify right side
113,390.26x = 10,277,616,609.88 - Step 5: Solve for x
x = 10,277,616,609.88/113,390.26 - Step 6: Final answer
x = 90,639.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.