Finding the Fourth Proportional to 131,995.14, 182,163.81 and 74,646.54
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Solution
The fourth proportional to 131,995.14, 182,163.81 and 74,646.54 is: 103,018.17
Step by Step Solution
- Step 1: Write the proportion equation
131,995.14 : 182,163.81 = 74,646.54 : x - Step 2: Convert to fraction form
131,995.14/182,163.81 = 74,646.54/x - Step 3: Cross multiply
131,995.14x = 182,163.81 × 74,646.54 - Step 4: Simplify right side
131,995.14x = 13,597,898,129.72 - Step 5: Solve for x
x = 13,597,898,129.72/131,995.14 - Step 6: Final answer
x = 103,018.17
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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.