Finding the Fourth Proportional to 115,339.10, 159,167.68 and 65,037.74
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Solution
The fourth proportional to 115,339.10, 159,167.68 and 65,037.74 is: 89,751.92
Step by Step Solution
- Step 1: Write the proportion equation
115,339.10 : 159,167.68 = 65,037.74 : x - Step 2: Convert to fraction form
115,339.10/159,167.68 = 65,037.74/x - Step 3: Cross multiply
115,339.10x = 159,167.68 × 65,037.74 - Step 4: Simplify right side
115,339.10x = 10,351,906,188.24 - Step 5: Solve for x
x = 10,351,906,188.24/115,339.10 - Step 6: Final answer
x = 89,751.92
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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.