Finding the Fourth Proportional to 104,841.55, 144,687.41 and 78,953.75
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Solution
The fourth proportional to 104,841.55, 144,687.41 and 78,953.75 is: 108,960.75
Step by Step Solution
- Step 1: Write the proportion equation
104,841.55 : 144,687.41 = 78,953.75 : x - Step 2: Convert to fraction form
104,841.55/144,687.41 = 78,953.75/x - Step 3: Cross multiply
104,841.55x = 144,687.41 × 78,953.75 - Step 4: Simplify right side
104,841.55x = 11,423,613,597.29 - Step 5: Solve for x
x = 11,423,613,597.29/104,841.55 - Step 6: Final answer
x = 108,960.75
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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.