Finding the Fourth Proportional to 115,850.09, 159,790.56 and 106,320.75
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Solution
The fourth proportional to 115,850.09, 159,790.56 and 106,320.75 is: 146,646.87
Step by Step Solution
- Step 1: Write the proportion equation
115,850.09 : 159,790.56 = 106,320.75 : x - Step 2: Convert to fraction form
115,850.09/159,790.56 = 106,320.75/x - Step 3: Cross multiply
115,850.09x = 159,790.56 × 106,320.75 - Step 4: Simplify right side
115,850.09x = 16,989,052,182.12 - Step 5: Solve for x
x = 16,989,052,182.12/115,850.09 - Step 6: Final answer
x = 146,646.87
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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.