Finding the Fourth Proportional to 119,305.12, 164,636.87 and 65,589.75
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Solution
The fourth proportional to 119,305.12, 164,636.87 and 65,589.75 is: 90,511.55
Step by Step Solution
- Step 1: Write the proportion equation
119,305.12 : 164,636.87 = 65,589.75 : x - Step 2: Convert to fraction form
119,305.12/164,636.87 = 65,589.75/x - Step 3: Cross multiply
119,305.12x = 164,636.87 × 65,589.75 - Step 4: Simplify right side
119,305.12x = 10,798,491,144.08 - Step 5: Solve for x
x = 10,798,491,144.08/119,305.12 - Step 6: Final answer
x = 90,511.55
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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.