Finding the Fourth Proportional to 118,226.40, 177,361.20 and 48,112.80
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Solution
The fourth proportional to 118,226.40, 177,361.20 and 48,112.80 is: 72,177.99
Step by Step Solution
- Step 1: Write the proportion equation
118,226.40 : 177,361.20 = 48,112.80 : x - Step 2: Convert to fraction form
118,226.40/177,361.20 = 48,112.80/x - Step 3: Cross multiply
118,226.40x = 177,361.20 × 48,112.80 - Step 4: Simplify right side
118,226.40x = 8,533,343,943.36 - Step 5: Solve for x
x = 8,533,343,943.36/118,226.40 - Step 6: Final answer
x = 72,177.99
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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.