Finding the Fourth Proportional to 157,794.30, 217,752.66 and 86,174.62
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Solution
The fourth proportional to 157,794.30, 217,752.66 and 86,174.62 is: 118,919.07
Step by Step Solution
- Step 1: Write the proportion equation
157,794.30 : 217,752.66 = 86,174.62 : x - Step 2: Convert to fraction form
157,794.30/217,752.66 = 86,174.62/x - Step 3: Cross multiply
157,794.30x = 217,752.66 × 86,174.62 - Step 4: Simplify right side
157,794.30x = 18,764,752,185.11 - Step 5: Solve for x
x = 18,764,752,185.11/157,794.30 - Step 6: Final answer
x = 118,919.07
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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.