Finding the Fourth Proportional to 136,437.84, 188,234.28 and 82,684.08
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Solution
The fourth proportional to 136,437.84, 188,234.28 and 82,684.08 is: 114,073.77
Step by Step Solution
- Step 1: Write the proportion equation
136,437.84 : 188,234.28 = 82,684.08 : x - Step 2: Convert to fraction form
136,437.84/188,234.28 = 82,684.08/x - Step 3: Cross multiply
136,437.84x = 188,234.28 × 82,684.08 - Step 4: Simplify right side
136,437.84x = 15,563,978,266.26 - Step 5: Solve for x
x = 15,563,978,266.26/136,437.84 - Step 6: Final answer
x = 114,073.77
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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.