Finding the Fourth Proportional to 193,467.09, 266,971.56 and 107,421.65
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Solution
The fourth proportional to 193,467.09, 266,971.56 and 107,421.65 is: 148,234.64
Step by Step Solution
- Step 1: Write the proportion equation
193,467.09 : 266,971.56 = 107,421.65 : x - Step 2: Convert to fraction form
193,467.09/266,971.56 = 107,421.65/x - Step 3: Cross multiply
193,467.09x = 266,971.56 × 107,421.65 - Step 4: Simplify right side
193,467.09x = 28,678,524,143.42 - Step 5: Solve for x
x = 28,678,524,143.42/193,467.09 - Step 6: Final answer
x = 148,234.64
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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.