Finding the Fourth Proportional to 132,714.15, 183,147.74 and 72,285.99
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Solution
The fourth proportional to 132,714.15, 183,147.74 and 72,285.99 is: 99,755.87
Step by Step Solution
- Step 1: Write the proportion equation
132,714.15 : 183,147.74 = 72,285.99 : x - Step 2: Convert to fraction form
132,714.15/183,147.74 = 72,285.99/x - Step 3: Cross multiply
132,714.15x = 183,147.74 × 72,285.99 - Step 4: Simplify right side
132,714.15x = 13,239,015,702.16 - Step 5: Solve for x
x = 13,239,015,702.16/132,714.15 - Step 6: Final answer
x = 99,755.87
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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.