Finding the Fourth Proportional to 118,532.97, 163,634.99 and 91,614.65
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Solution
The fourth proportional to 118,532.97, 163,634.99 and 91,614.65 is: 126,474.19
Step by Step Solution
- Step 1: Write the proportion equation
118,532.97 : 163,634.99 = 91,614.65 : x - Step 2: Convert to fraction form
118,532.97/163,634.99 = 91,614.65/x - Step 3: Cross multiply
118,532.97x = 163,634.99 × 91,614.65 - Step 4: Simplify right side
118,532.97x = 14,991,361,060.36 - Step 5: Solve for x
x = 14,991,361,060.36/118,532.97 - Step 6: Final answer
x = 126,474.19
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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.