Finding the Fourth Proportional to 145,940.08, 201,397.46 and 78,872.08
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Solution
The fourth proportional to 145,940.08, 201,397.46 and 78,872.08 is: 108,843.55
Step by Step Solution
- Step 1: Write the proportion equation
145,940.08 : 201,397.46 = 78,872.08 : x - Step 2: Convert to fraction form
145,940.08/201,397.46 = 78,872.08/x - Step 3: Cross multiply
145,940.08x = 201,397.46 × 78,872.08 - Step 4: Simplify right side
145,940.08x = 15,884,636,576.92 - Step 5: Solve for x
x = 15,884,636,576.92/145,940.08 - Step 6: Final answer
x = 108,843.55
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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.