Finding the Fourth Proportional to 99,198.16, 136,894.46 and 53,877.03
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Solution
The fourth proportional to 99,198.16, 136,894.46 and 53,877.03 is: 74,350.84
Step by Step Solution
- Step 1: Write the proportion equation
99,198.16 : 136,894.46 = 53,877.03 : x - Step 2: Convert to fraction form
99,198.16/136,894.46 = 53,877.03/x - Step 3: Cross multiply
99,198.16x = 136,894.46 × 53,877.03 - Step 4: Simplify right side
99,198.16x = 7,375,466,915.55 - Step 5: Solve for x
x = 7,375,466,915.55/99,198.16 - Step 6: Final answer
x = 74,350.84
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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.