Finding the Fourth Proportional to 119,975.40, 165,567.18 and 68,289.97
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Solution
The fourth proportional to 119,975.40, 165,567.18 and 68,289.97 is: 94,240.80
Step by Step Solution
- Step 1: Write the proportion equation
119,975.40 : 165,567.18 = 68,289.97 : x - Step 2: Convert to fraction form
119,975.40/165,567.18 = 68,289.97/x - Step 3: Cross multiply
119,975.40x = 165,567.18 × 68,289.97 - Step 4: Simplify right side
119,975.40x = 11,306,577,755.18 - Step 5: Solve for x
x = 11,306,577,755.18/119,975.40 - Step 6: Final answer
x = 94,240.80
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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.