Finding the Fourth Proportional to 157,369.62, 217,167.27 and 85,750.26
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Solution
The fourth proportional to 157,369.62, 217,167.27 and 85,750.26 is: 118,333.83
Step by Step Solution
- Step 1: Write the proportion equation
157,369.62 : 217,167.27 = 85,750.26 : x - Step 2: Convert to fraction form
157,369.62/217,167.27 = 85,750.26/x - Step 3: Cross multiply
157,369.62x = 217,167.27 × 85,750.26 - Step 4: Simplify right side
157,369.62x = 18,622,149,865.99 - Step 5: Solve for x
x = 18,622,149,865.99/157,369.62 - Step 6: Final answer
x = 118,333.83
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1.5x scale
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.