Finding the Fourth Proportional to 116,795.49, 160,988.47 and 91,257.31
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Solution
The fourth proportional to 116,795.49, 160,988.47 and 91,257.31 is: 125,787.17
Step by Step Solution
- Step 1: Write the proportion equation
116,795.49 : 160,988.47 = 91,257.31 : x - Step 2: Convert to fraction form
116,795.49/160,988.47 = 91,257.31/x - Step 3: Cross multiply
116,795.49x = 160,988.47 × 91,257.31 - Step 4: Simplify right side
116,795.49x = 14,691,374,713.22 - Step 5: Solve for x
x = 14,691,374,713.22/116,795.49 - Step 6: Final answer
x = 125,787.17
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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.