Finding the Fourth Proportional to 157,499.34, 217,348.56 and 85,879.19
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Solution
The fourth proportional to 157,499.34, 217,348.56 and 85,879.19 is: 118,512.99
Step by Step Solution
- Step 1: Write the proportion equation
157,499.34 : 217,348.56 = 85,879.19 : x - Step 2: Convert to fraction form
157,499.34/217,348.56 = 85,879.19/x - Step 3: Cross multiply
157,499.34x = 217,348.56 × 85,879.19 - Step 4: Simplify right side
157,499.34x = 18,665,717,193.72 - Step 5: Solve for x
x = 18,665,717,193.72/157,499.34 - Step 6: Final answer
x = 118,512.99
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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.