Finding the Fourth Proportional to 132,989.81, 183,524.99 and 75,629.09
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Solution
The fourth proportional to 132,989.81, 183,524.99 and 75,629.09 is: 104,367.61
Step by Step Solution
- Step 1: Write the proportion equation
132,989.81 : 183,524.99 = 75,629.09 : x - Step 2: Convert to fraction form
132,989.81/183,524.99 = 75,629.09/x - Step 3: Cross multiply
132,989.81x = 183,524.99 × 75,629.09 - Step 4: Simplify right side
132,989.81x = 13,879,828,633.84 - Step 5: Solve for x
x = 13,879,828,633.84/132,989.81 - Step 6: Final answer
x = 104,367.61
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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.