Finding the Fourth Proportional to 118,857.17, 177,238.18 and 117,791.21
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Solution
The fourth proportional to 118,857.17, 177,238.18 and 117,791.21 is: 175,648.63
Step by Step Solution
- Step 1: Write the proportion equation
118,857.17 : 177,238.18 = 117,791.21 : x - Step 2: Convert to fraction form
118,857.17/177,238.18 = 117,791.21/x - Step 3: Cross multiply
118,857.17x = 177,238.18 × 117,791.21 - Step 4: Simplify right side
118,857.17x = 20,877,099,608.16 - Step 5: Solve for x
x = 20,877,099,608.16/118,857.17 - Step 6: Final answer
x = 175,648.63
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.