Finding the Fourth Proportional to 121,515.48, 167,702.94 and 73,757.88
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Solution
The fourth proportional to 121,515.48, 167,702.94 and 73,757.88 is: 101,792.90
Step by Step Solution
- Step 1: Write the proportion equation
121,515.48 : 167,702.94 = 73,757.88 : x - Step 2: Convert to fraction form
121,515.48/167,702.94 = 73,757.88/x - Step 3: Cross multiply
121,515.48x = 167,702.94 × 73,757.88 - Step 4: Simplify right side
121,515.48x = 12,369,413,324.17 - Step 5: Solve for x
x = 12,369,413,324.17/121,515.48 - Step 6: Final answer
x = 101,792.90
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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.