Finding the Fourth Proportional to 167,668.36, 251,498.92 and 78,872.68
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Solution
The fourth proportional to 167,668.36, 251,498.92 and 78,872.68 is: 118,307.32
Step by Step Solution
- Step 1: Write the proportion equation
167,668.36 : 251,498.92 = 78,872.68 : x - Step 2: Convert to fraction form
167,668.36/251,498.92 = 78,872.68/x - Step 3: Cross multiply
167,668.36x = 251,498.92 × 78,872.68 - Step 4: Simplify right side
167,668.36x = 19,836,393,837.51 - Step 5: Solve for x
x = 19,836,393,837.51/167,668.36 - Step 6: Final answer
x = 118,307.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.