Finding the Fourth Proportional to 118,170.80, 177,144.08 and 47,137.12
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Solution
The fourth proportional to 118,170.80, 177,144.08 and 47,137.12 is: 70,660.96
Step by Step Solution
- Step 1: Write the proportion equation
118,170.80 : 177,144.08 = 47,137.12 : x - Step 2: Convert to fraction form
118,170.80/177,144.08 = 47,137.12/x - Step 3: Cross multiply
118,170.80x = 177,144.08 × 47,137.12 - Step 4: Simplify right side
118,170.80x = 8,350,061,756.25 - Step 5: Solve for x
x = 8,350,061,756.25/118,170.80 - Step 6: Final answer
x = 70,660.96
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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.