Finding the Fourth Proportional to 132,846.21, 183,326.26 and 72,415.53
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Solution
The fourth proportional to 132,846.21, 183,326.26 and 72,415.53 is: 99,932.61
Step by Step Solution
- Step 1: Write the proportion equation
132,846.21 : 183,326.26 = 72,415.53 : x - Step 2: Convert to fraction form
132,846.21/183,326.26 = 72,415.53/x - Step 3: Cross multiply
132,846.21x = 183,326.26 × 72,415.53 - Step 4: Simplify right side
132,846.21x = 13,275,668,280.82 - Step 5: Solve for x
x = 13,275,668,280.82/132,846.21 - Step 6: Final answer
x = 99,932.61
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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.