Finding the Fourth Proportional to 157,576.50, 217,451.88 and 85,957.08
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Solution
The fourth proportional to 157,576.50, 217,451.88 and 85,957.08 is: 118,618.76
Step by Step Solution
- Step 1: Write the proportion equation
157,576.50 : 217,451.88 = 85,957.08 : x - Step 2: Convert to fraction form
157,576.50/217,451.88 = 85,957.08/x - Step 3: Cross multiply
157,576.50x = 217,451.88 × 85,957.08 - Step 4: Simplify right side
157,576.50x = 18,691,528,645.31 - Step 5: Solve for x
x = 18,691,528,645.31/157,576.50 - Step 6: Final answer
x = 118,618.76
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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.