Finding the Fourth Proportional to 132,447.93, 182,831.09 and 81,481.32
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Solution
The fourth proportional to 132,447.93, 182,831.09 and 81,481.32 is: 112,476.79
Step by Step Solution
- Step 1: Write the proportion equation
132,447.93 : 182,831.09 = 81,481.32 : x - Step 2: Convert to fraction form
132,447.93/182,831.09 = 81,481.32/x - Step 3: Cross multiply
132,447.93x = 182,831.09 × 81,481.32 - Step 4: Simplify right side
132,447.93x = 14,897,318,550.24 - Step 5: Solve for x
x = 14,897,318,550.24/132,447.93 - Step 6: Final answer
x = 112,476.79
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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.