Finding the Fourth Proportional to 131,537.02, 181,520.84 and 71,107.70
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Solution
The fourth proportional to 131,537.02, 181,520.84 and 71,107.70 is: 98,128.49
Step by Step Solution
- Step 1: Write the proportion equation
131,537.02 : 181,520.84 = 71,107.70 : x - Step 2: Convert to fraction form
131,537.02/181,520.84 = 71,107.70/x - Step 3: Cross multiply
131,537.02x = 181,520.84 × 71,107.70 - Step 4: Simplify right side
131,537.02x = 12,907,529,434.47 - Step 5: Solve for x
x = 12,907,529,434.47/131,537.02 - Step 6: Final answer
x = 98,128.49
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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.