Finding the Fourth Proportional to 119,393.29, 164,747.79 and 80,715.29
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Solution
The fourth proportional to 119,393.29, 164,747.79 and 80,715.29 is: 111,376.99
Step by Step Solution
- Step 1: Write the proportion equation
119,393.29 : 164,747.79 = 80,715.29 : x - Step 2: Convert to fraction form
119,393.29/164,747.79 = 80,715.29/x - Step 3: Cross multiply
119,393.29x = 164,747.79 × 80,715.29 - Step 4: Simplify right side
119,393.29x = 13,297,665,646.71 - Step 5: Solve for x
x = 13,297,665,646.71/119,393.29 - Step 6: Final answer
x = 111,376.99
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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.