Finding the Fourth Proportional to 157,932.24, 217,934.70 and 86,296.92
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Solution
The fourth proportional to 157,932.24, 217,934.70 and 86,296.92 is: 119,083.31
Step by Step Solution
- Step 1: Write the proportion equation
157,932.24 : 217,934.70 = 86,296.92 : x - Step 2: Convert to fraction form
157,932.24/217,934.70 = 86,296.92/x - Step 3: Cross multiply
157,932.24x = 217,934.70 × 86,296.92 - Step 4: Simplify right side
157,932.24x = 18,807,093,371.12 - Step 5: Solve for x
x = 18,807,093,371.12/157,932.24 - Step 6: Final answer
x = 119,083.31
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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.