Finding the Fourth Proportional to 99,175.80, 136,915.98 and 76,464.96
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Solution
The fourth proportional to 99,175.80, 136,915.98 and 76,464.96 is: 105,562.80
Step by Step Solution
- Step 1: Write the proportion equation
99,175.80 : 136,915.98 = 76,464.96 : x - Step 2: Convert to fraction form
99,175.80/136,915.98 = 76,464.96/x - Step 3: Cross multiply
99,175.80x = 136,915.98 × 76,464.96 - Step 4: Simplify right side
99,175.80x = 10,469,274,934.06 - Step 5: Solve for x
x = 10,469,274,934.06/99,175.80 - Step 6: Final answer
x = 105,562.80
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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.