Finding the Fourth Proportional to 157,573.50, 217,447.74 and 85,954.08
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Solution
The fourth proportional to 157,573.50, 217,447.74 and 85,954.08 is: 118,614.62
Step by Step Solution
- Step 1: Write the proportion equation
157,573.50 : 217,447.74 = 85,954.08 : x - Step 2: Convert to fraction form
157,573.50/217,447.74 = 85,954.08/x - Step 3: Cross multiply
157,573.50x = 217,447.74 × 85,954.08 - Step 4: Simplify right side
157,573.50x = 18,690,520,439.78 - Step 5: Solve for x
x = 18,690,520,439.78/157,573.50 - Step 6: Final answer
x = 118,614.62
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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.