Finding the Fourth Proportional to 118,524.69, 163,550.68 and 70,128.09
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Solution
The fourth proportional to 118,524.69, 163,550.68 and 70,128.09 is: 96,768.84
Step by Step Solution
- Step 1: Write the proportion equation
118,524.69 : 163,550.68 = 70,128.09 : x - Step 2: Convert to fraction form
118,524.69/163,550.68 = 70,128.09/x - Step 3: Cross multiply
118,524.69x = 163,550.68 × 70,128.09 - Step 4: Simplify right side
118,524.69x = 11,469,496,631.28 - Step 5: Solve for x
x = 11,469,496,631.28/118,524.69 - Step 6: Final answer
x = 96,768.84
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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.