Finding the Fourth Proportional to 118,935.75, 164,131.34 and 68,634.75
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Solution
The fourth proportional to 118,935.75, 164,131.34 and 68,634.75 is: 94,715.96
Step by Step Solution
- Step 1: Write the proportion equation
118,935.75 : 164,131.34 = 68,634.75 : x - Step 2: Convert to fraction form
118,935.75/164,131.34 = 68,634.75/x - Step 3: Cross multiply
118,935.75x = 164,131.34 × 68,634.75 - Step 4: Simplify right side
118,935.75x = 11,265,113,488.07 - Step 5: Solve for x
x = 11,265,113,488.07/118,935.75 - Step 6: Final answer
x = 94,715.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.