Finding the Fourth Proportional to 157,586.24, 217,468.56 and 85,965.75
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Solution
The fourth proportional to 157,586.24, 217,468.56 and 85,965.75 is: 118,632.49
Step by Step Solution
- Step 1: Write the proportion equation
157,586.24 : 217,468.56 = 85,965.75 : x - Step 2: Convert to fraction form
157,586.24/217,468.56 = 85,965.75/x - Step 3: Cross multiply
157,586.24x = 217,468.56 × 85,965.75 - Step 4: Simplify right side
157,586.24x = 18,694,847,861.82 - Step 5: Solve for x
x = 18,694,847,861.82/157,586.24 - Step 6: Final answer
x = 118,632.49
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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.