Finding the Fourth Proportional to 115,640.26, 159,610.23 and 75,283.75
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Solution
The fourth proportional to 115,640.26, 159,610.23 and 75,283.75 is: 103,908.94
Step by Step Solution
- Step 1: Write the proportion equation
115,640.26 : 159,610.23 = 75,283.75 : x - Step 2: Convert to fraction form
115,640.26/159,610.23 = 75,283.75/x - Step 3: Cross multiply
115,640.26x = 159,610.23 × 75,283.75 - Step 4: Simplify right side
115,640.26x = 12,016,056,652.76 - Step 5: Solve for x
x = 12,016,056,652.76/115,640.26 - Step 6: Final answer
x = 103,908.94
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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.