Finding the Fourth Proportional to 132,743.85, 183,007.40 and 128,616.09
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Solution
The fourth proportional to 132,743.85, 183,007.40 and 128,616.09 is: 177,316.66
Step by Step Solution
- Step 1: Write the proportion equation
132,743.85 : 183,007.40 = 128,616.09 : x - Step 2: Convert to fraction form
132,743.85/183,007.40 = 128,616.09/x - Step 3: Cross multiply
132,743.85x = 183,007.40 × 128,616.09 - Step 4: Simplify right side
132,743.85x = 23,537,695,623.17 - Step 5: Solve for x
x = 23,537,695,623.17/132,743.85 - Step 6: Final answer
x = 177,316.66
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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.