Finding the Fourth Proportional to 118,905.75, 164,089.94 and 68,604.75
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Solution
The fourth proportional to 118,905.75, 164,089.94 and 68,604.75 is: 94,674.56
Step by Step Solution
- Step 1: Write the proportion equation
118,905.75 : 164,089.94 = 68,604.75 : x - Step 2: Convert to fraction form
118,905.75/164,089.94 = 68,604.75/x - Step 3: Cross multiply
118,905.75x = 164,089.94 × 68,604.75 - Step 4: Simplify right side
118,905.75x = 11,257,348,968.19 - Step 5: Solve for x
x = 11,257,348,968.19/118,905.75 - Step 6: Final answer
x = 94,674.56
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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.