Finding the Fourth Proportional to 117,727.80, 176,591.70 and 113,135.10
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Solution
The fourth proportional to 117,727.80, 176,591.70 and 113,135.10 is: 169,702.65
Step by Step Solution
- Step 1: Write the proportion equation
117,727.80 : 176,591.70 = 113,135.10 : x - Step 2: Convert to fraction form
117,727.80/176,591.70 = 113,135.10/x - Step 3: Cross multiply
117,727.80x = 176,591.70 × 113,135.10 - Step 4: Simplify right side
117,727.80x = 19,978,719,638.67 - Step 5: Solve for x
x = 19,978,719,638.67/117,727.80 - Step 6: Final answer
x = 169,702.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.