Finding the Fourth Proportional to 132,115.95, 182,471.43 and 86,995.62
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Solution
The fourth proportional to 132,115.95, 182,471.43 and 86,995.62 is: 120,153.66
Step by Step Solution
- Step 1: Write the proportion equation
132,115.95 : 182,471.43 = 86,995.62 : x - Step 2: Convert to fraction form
132,115.95/182,471.43 = 86,995.62/x - Step 3: Cross multiply
132,115.95x = 182,471.43 × 86,995.62 - Step 4: Simplify right side
132,115.95x = 15,874,215,185.14 - Step 5: Solve for x
x = 15,874,215,185.14/132,115.95 - Step 6: Final answer
x = 120,153.66
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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.