Finding the Fourth Proportional to 140,194.26, 193,721.03 and 99,837.96
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Solution
The fourth proportional to 140,194.26, 193,721.03 and 99,837.96 is: 137,956.52
Step by Step Solution
- Step 1: Write the proportion equation
140,194.26 : 193,721.03 = 99,837.96 : x - Step 2: Convert to fraction form
140,194.26/193,721.03 = 99,837.96/x - Step 3: Cross multiply
140,194.26x = 193,721.03 × 99,837.96 - Step 4: Simplify right side
140,194.26x = 19,340,711,945.11 - Step 5: Solve for x
x = 19,340,711,945.11/140,194.26 - Step 6: Final answer
x = 137,956.52
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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.