Finding the Fourth Proportional to 157,294.88, 217,063.92 and 85,674.08
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Solution
The fourth proportional to 157,294.88, 217,063.92 and 85,674.08 is: 118,228.59
Step by Step Solution
- Step 1: Write the proportion equation
157,294.88 : 217,063.92 = 85,674.08 : x - Step 2: Convert to fraction form
157,294.88/217,063.92 = 85,674.08/x - Step 3: Cross multiply
157,294.88x = 217,063.92 × 85,674.08 - Step 4: Simplify right side
157,294.88x = 18,596,751,647.19 - Step 5: Solve for x
x = 18,596,751,647.19/157,294.88 - Step 6: Final answer
x = 118,228.59
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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.