Finding the Fourth Proportional to 118,205.20, 177,307.80 and 48,134.80
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Solution
The fourth proportional to 118,205.20, 177,307.80 and 48,134.80 is: 72,202.20
Step by Step Solution
- Step 1: Write the proportion equation
118,205.20 : 177,307.80 = 48,134.80 : x - Step 2: Convert to fraction form
118,205.20/177,307.80 = 48,134.80/x - Step 3: Cross multiply
118,205.20x = 177,307.80 × 48,134.80 - Step 4: Simplify right side
118,205.20x = 8,534,675,491.44 - Step 5: Solve for x
x = 8,534,675,491.44/118,205.20 - Step 6: Final answer
x = 72,202.20
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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.