Finding the Fourth Proportional to 147,907.80, 221,861.70 and 53,137.80
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Solution
The fourth proportional to 147,907.80, 221,861.70 and 53,137.80 is: 79,706.70
Step by Step Solution
- Step 1: Write the proportion equation
147,907.80 : 221,861.70 = 53,137.80 : x - Step 2: Convert to fraction form
147,907.80/221,861.70 = 53,137.80/x - Step 3: Cross multiply
147,907.80x = 221,861.70 × 53,137.80 - Step 4: Simplify right side
147,907.80x = 11,789,242,642.26 - Step 5: Solve for x
x = 11,789,242,642.26/147,907.80 - Step 6: Final answer
x = 79,706.70
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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.