Finding the Fourth Proportional to 115,661.00, 173,293.29 and 77,639.09
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Solution
The fourth proportional to 115,661.00, 173,293.29 and 77,639.09 is: 116,325.58
Step by Step Solution
- Step 1: Write the proportion equation
115,661.00 : 173,293.29 = 77,639.09 : x - Step 2: Convert to fraction form
115,661.00/173,293.29 = 77,639.09/x - Step 3: Cross multiply
115,661.00x = 173,293.29 × 77,639.09 - Step 4: Simplify right side
115,661.00x = 13,454,332,472.24 - Step 5: Solve for x
x = 13,454,332,472.24/115,661.00 - Step 6: Final answer
x = 116,325.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.