Finding the Fourth Proportional to 197,685.12, 272,805.42 and 107,041.08
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Solution
The fourth proportional to 197,685.12, 272,805.42 and 107,041.08 is: 147,716.67
Step by Step Solution
- Step 1: Write the proportion equation
197,685.12 : 272,805.42 = 107,041.08 : x - Step 2: Convert to fraction form
197,685.12/272,805.42 = 107,041.08/x - Step 3: Cross multiply
197,685.12x = 272,805.42 × 107,041.08 - Step 4: Simplify right side
197,685.12x = 29,201,386,786.65 - Step 5: Solve for x
x = 29,201,386,786.65/197,685.12 - Step 6: Final answer
x = 147,716.67
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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.