Finding the Fourth Proportional to 119,821.08, 165,353.63 and 66,107.68
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Solution
The fourth proportional to 119,821.08, 165,353.63 and 66,107.68 is: 91,228.89
Step by Step Solution
- Step 1: Write the proportion equation
119,821.08 : 165,353.63 = 66,107.68 : x - Step 2: Convert to fraction form
119,821.08/165,353.63 = 66,107.68/x - Step 3: Cross multiply
119,821.08x = 165,353.63 × 66,107.68 - Step 4: Simplify right side
119,821.08x = 10,931,144,114.96 - Step 5: Solve for x
x = 10,931,144,114.96/119,821.08 - Step 6: Final answer
x = 91,228.89
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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.