Finding the Fourth Proportional to 118,792.30, 163,933.37 and 71,045.65
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Solution
The fourth proportional to 118,792.30, 163,933.37 and 71,045.65 is: 98,042.99
Step by Step Solution
- Step 1: Write the proportion equation
118,792.30 : 163,933.37 = 71,045.65 : x - Step 2: Convert to fraction form
118,792.30/163,933.37 = 71,045.65/x - Step 3: Cross multiply
118,792.30x = 163,933.37 × 71,045.65 - Step 4: Simplify right side
118,792.30x = 11,646,752,063.28 - Step 5: Solve for x
x = 11,646,752,063.28/118,792.30 - Step 6: Final answer
x = 98,042.99
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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.