Finding the Fourth Proportional to 168,307.13, 232,185.62 and 100,285.97
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Solution
The fourth proportional to 168,307.13, 232,185.62 and 100,285.97 is: 138,348.02
Step by Step Solution
- Step 1: Write the proportion equation
168,307.13 : 232,185.62 = 100,285.97 : x - Step 2: Convert to fraction form
168,307.13/232,185.62 = 100,285.97/x - Step 3: Cross multiply
168,307.13x = 232,185.62 × 100,285.97 - Step 4: Simplify right side
168,307.13x = 23,284,959,211.54 - Step 5: Solve for x
x = 23,284,959,211.54/168,307.13 - Step 6: Final answer
x = 138,348.02
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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.