Finding the Fourth Proportional to 132,845.16, 183,324.18 and 72,418.20
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Solution
The fourth proportional to 132,845.16, 183,324.18 and 72,418.20 is: 99,935.95
Step by Step Solution
- Step 1: Write the proportion equation
132,845.16 : 183,324.18 = 72,418.20 : x - Step 2: Convert to fraction form
132,845.16/183,324.18 = 72,418.20/x - Step 3: Cross multiply
132,845.16x = 183,324.18 × 72,418.20 - Step 4: Simplify right side
132,845.16x = 13,276,007,132.08 - Step 5: Solve for x
x = 13,276,007,132.08/132,845.16 - Step 6: Final answer
x = 99,935.95
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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.