Finding the Fourth Proportional to 119,301.19, 164,639.49 and 65,590.09
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Solution
The fourth proportional to 119,301.19, 164,639.49 and 65,590.09 is: 90,516.44
Step by Step Solution
- Step 1: Write the proportion equation
119,301.19 : 164,639.49 = 65,590.09 : x - Step 2: Convert to fraction form
119,301.19/164,639.49 = 65,590.09/x - Step 3: Cross multiply
119,301.19x = 164,639.49 × 65,590.09 - Step 4: Simplify right side
119,301.19x = 10,798,718,309.09 - Step 5: Solve for x
x = 10,798,718,309.09/119,301.19 - Step 6: Final answer
x = 90,516.44
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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.