Finding the Fourth Proportional to 118,445.36, 177,791.04 and 68,622.76
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Solution
The fourth proportional to 118,445.36, 177,791.04 and 68,622.76 is: 103,005.40
Step by Step Solution
- Step 1: Write the proportion equation
118,445.36 : 177,791.04 = 68,622.76 : x - Step 2: Convert to fraction form
118,445.36/177,791.04 = 68,622.76/x - Step 3: Cross multiply
118,445.36x = 177,791.04 × 68,622.76 - Step 4: Simplify right side
118,445.36x = 12,200,511,868.07 - Step 5: Solve for x
x = 12,200,511,868.07/118,445.36 - Step 6: Final answer
x = 103,005.40
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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.