Finding the Fourth Proportional to 122,175.69, 168,585.35 and 68,456.49
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Solution
The fourth proportional to 122,175.69, 168,585.35 and 68,456.49 is: 94,460.37
Step by Step Solution
- Step 1: Write the proportion equation
122,175.69 : 168,585.35 = 68,456.49 : x - Step 2: Convert to fraction form
122,175.69/168,585.35 = 68,456.49/x - Step 3: Cross multiply
122,175.69x = 168,585.35 × 68,456.49 - Step 4: Simplify right side
122,175.69x = 11,540,760,984.14 - Step 5: Solve for x
x = 11,540,760,984.14/122,175.69 - Step 6: Final answer
x = 94,460.37
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1.5x scale
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.