Finding the Fourth Proportional to 136,729.62, 205,108.74 and 36,890.64
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Solution
The fourth proportional to 136,729.62, 205,108.74 and 36,890.64 is: 55,339.82
Step by Step Solution
- Step 1: Write the proportion equation
136,729.62 : 205,108.74 = 36,890.64 : x - Step 2: Convert to fraction form
136,729.62/205,108.74 = 36,890.64/x - Step 3: Cross multiply
136,729.62x = 205,108.74 × 36,890.64 - Step 4: Simplify right side
136,729.62x = 7,566,592,688.19 - Step 5: Solve for x
x = 7,566,592,688.19/136,729.62 - Step 6: Final answer
x = 55,339.82
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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.