Finding the Fourth Proportional to 154,571.63, 213,308.84 and 87,503.63
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Solution
The fourth proportional to 154,571.63, 213,308.84 and 87,503.63 is: 120,755.00
Step by Step Solution
- Step 1: Write the proportion equation
154,571.63 : 213,308.84 = 87,503.63 : x - Step 2: Convert to fraction form
154,571.63/213,308.84 = 87,503.63/x - Step 3: Cross multiply
154,571.63x = 213,308.84 × 87,503.63 - Step 4: Simplify right side
154,571.63x = 18,665,296,963.30 - Step 5: Solve for x
x = 18,665,296,963.30/154,571.63 - Step 6: Final answer
x = 120,755.00
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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.