Finding the Fourth Proportional to 116,491.71, 160,651.92 and 86,352.09
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Solution
The fourth proportional to 116,491.71, 160,651.92 and 86,352.09 is: 119,086.84
Step by Step Solution
- Step 1: Write the proportion equation
116,491.71 : 160,651.92 = 86,352.09 : x - Step 2: Convert to fraction form
116,491.71/160,651.92 = 86,352.09/x - Step 3: Cross multiply
116,491.71x = 160,651.92 × 86,352.09 - Step 4: Simplify right side
116,491.71x = 13,872,629,054.51 - Step 5: Solve for x
x = 13,872,629,054.51/116,491.71 - Step 6: Final answer
x = 119,086.84
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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.