Finding the Fourth Proportional to 118,836.24, 178,134.35 and 74,494.08
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Solution
The fourth proportional to 118,836.24, 178,134.35 and 74,494.08 is: 111,665.89
Step by Step Solution
- Step 1: Write the proportion equation
118,836.24 : 178,134.35 = 74,494.08 : x - Step 2: Convert to fraction form
118,836.24/178,134.35 = 74,494.08/x - Step 3: Cross multiply
118,836.24x = 178,134.35 × 74,494.08 - Step 4: Simplify right side
118,836.24x = 13,269,954,147.18 - Step 5: Solve for x
x = 13,269,954,147.18/118,836.24 - Step 6: Final answer
x = 111,665.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.