Finding the Fourth Proportional to 118,339.60, 177,325.08 and 74,471.44
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Solution
The fourth proportional to 118,339.60, 177,325.08 and 74,471.44 is: 111,591.17
Step by Step Solution
- Step 1: Write the proportion equation
118,339.60 : 177,325.08 = 74,471.44 : x - Step 2: Convert to fraction form
118,339.60/177,325.08 = 74,471.44/x - Step 3: Cross multiply
118,339.60x = 177,325.08 × 74,471.44 - Step 4: Simplify right side
118,339.60x = 13,205,654,055.72 - Step 5: Solve for x
x = 13,205,654,055.72/118,339.60 - Step 6: Final answer
x = 111,591.17
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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.