Finding the Fourth Proportional to 163,961.70, 245,939.30 and 53,153.70
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Solution
The fourth proportional to 163,961.70, 245,939.30 and 53,153.70 is: 79,729.50
Step by Step Solution
- Step 1: Write the proportion equation
163,961.70 : 245,939.30 = 53,153.70 : x - Step 2: Convert to fraction form
163,961.70/245,939.30 = 53,153.70/x - Step 3: Cross multiply
163,961.70x = 245,939.30 × 53,153.70 - Step 4: Simplify right side
163,961.70x = 13,072,583,770.41 - Step 5: Solve for x
x = 13,072,583,770.41/163,961.70 - Step 6: Final answer
x = 79,729.50
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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.