Finding the Fourth Proportional to 118,515.72, 177,783.02 and 39,630.44
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Solution
The fourth proportional to 118,515.72, 177,783.02 and 39,630.44 is: 59,448.82
Step by Step Solution
- Step 1: Write the proportion equation
118,515.72 : 177,783.02 = 39,630.44 : x - Step 2: Convert to fraction form
118,515.72/177,783.02 = 39,630.44/x - Step 3: Cross multiply
118,515.72x = 177,783.02 × 39,630.44 - Step 4: Simplify right side
118,515.72x = 7,045,619,307.13 - Step 5: Solve for x
x = 7,045,619,307.13/118,515.72 - Step 6: Final answer
x = 59,448.82
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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.