Finding the Fourth Proportional to 132,405.91, 182,721.01 and 71,977.07
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Solution
The fourth proportional to 132,405.91, 182,721.01 and 71,977.07 is: 99,328.82
Step by Step Solution
- Step 1: Write the proportion equation
132,405.91 : 182,721.01 = 71,977.07 : x - Step 2: Convert to fraction form
132,405.91/182,721.01 = 71,977.07/x - Step 3: Cross multiply
132,405.91x = 182,721.01 × 71,977.07 - Step 4: Simplify right side
132,405.91x = 13,151,722,747.30 - Step 5: Solve for x
x = 13,151,722,747.30/132,405.91 - Step 6: Final answer
x = 99,328.82
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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.