Finding the Fourth Proportional to 129,281.40, 193,951.26 and 53,377.92
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Solution
The fourth proportional to 129,281.40, 193,951.26 and 53,377.92 is: 80,078.92
Step by Step Solution
- Step 1: Write the proportion equation
129,281.40 : 193,951.26 = 53,377.92 : x - Step 2: Convert to fraction form
129,281.40/193,951.26 = 53,377.92/x - Step 3: Cross multiply
129,281.40x = 193,951.26 × 53,377.92 - Step 4: Simplify right side
129,281.40x = 10,352,714,840.18 - Step 5: Solve for x
x = 10,352,714,840.18/129,281.40 - Step 6: Final answer
x = 80,078.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.