Finding the Fourth Proportional to 129,065.65, 193,554.81 and 49,084.62
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Solution
The fourth proportional to 129,065.65, 193,554.81 and 49,084.62 is: 73,610.32
Step by Step Solution
- Step 1: Write the proportion equation
129,065.65 : 193,554.81 = 49,084.62 : x - Step 2: Convert to fraction form
129,065.65/193,554.81 = 49,084.62/x - Step 3: Cross multiply
129,065.65x = 193,554.81 × 49,084.62 - Step 4: Simplify right side
129,065.65x = 9,500,564,298.02 - Step 5: Solve for x
x = 9,500,564,298.02/129,065.65 - Step 6: Final answer
x = 73,610.32
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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.