Finding the Fourth Proportional to 140,609.22, 193,838.74 and 100,252.99
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Solution
The fourth proportional to 140,609.22, 193,838.74 and 100,252.99 is: 138,205.11
Step by Step Solution
- Step 1: Write the proportion equation
140,609.22 : 193,838.74 = 100,252.99 : x - Step 2: Convert to fraction form
140,609.22/193,838.74 = 100,252.99/x - Step 3: Cross multiply
140,609.22x = 193,838.74 × 100,252.99 - Step 4: Simplify right side
140,609.22x = 19,432,913,262.83 - Step 5: Solve for x
x = 19,432,913,262.83/140,609.22 - Step 6: Final answer
x = 138,205.11
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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.