Finding the Fourth Proportional to 117,007.32, 161,418.81 and 68,584.70
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Solution
The fourth proportional to 117,007.32, 161,418.81 and 68,584.70 is: 94,616.82
Step by Step Solution
- Step 1: Write the proportion equation
117,007.32 : 161,418.81 = 68,584.70 : x - Step 2: Convert to fraction form
117,007.32/161,418.81 = 68,584.70/x - Step 3: Cross multiply
117,007.32x = 161,418.81 × 68,584.70 - Step 4: Simplify right side
117,007.32x = 11,070,860,768.51 - Step 5: Solve for x
x = 11,070,860,768.51/117,007.32 - Step 6: Final answer
x = 94,616.82
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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.