Finding the Fourth Proportional to 157,894.05, 217,893.83 and 85,296.96
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Solution
The fourth proportional to 157,894.05, 217,893.83 and 85,296.96 is: 117,709.82
Step by Step Solution
- Step 1: Write the proportion equation
157,894.05 : 217,893.83 = 85,296.96 : x - Step 2: Convert to fraction form
157,894.05/217,893.83 = 85,296.96/x - Step 3: Cross multiply
157,894.05x = 217,893.83 × 85,296.96 - Step 4: Simplify right side
157,894.05x = 18,585,680,875.27 - Step 5: Solve for x
x = 18,585,680,875.27/157,894.05 - Step 6: Final answer
x = 117,709.82
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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.