Finding the Fourth Proportional to 118,548.20, 177,390.30 and 87,444.20
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Solution
The fourth proportional to 118,548.20, 177,390.30 and 87,444.20 is: 130,847.65
Step by Step Solution
- Step 1: Write the proportion equation
118,548.20 : 177,390.30 = 87,444.20 : x - Step 2: Convert to fraction form
118,548.20/177,390.30 = 87,444.20/x - Step 3: Cross multiply
118,548.20x = 177,390.30 × 87,444.20 - Step 4: Simplify right side
118,548.20x = 15,511,752,871.26 - Step 5: Solve for x
x = 15,511,752,871.26/118,548.20 - Step 6: Final answer
x = 130,847.65
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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.