Finding the Fourth Proportional to 153,586.08, 211,975.92 and 121,996.08
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Solution
The fourth proportional to 153,586.08, 211,975.92 and 121,996.08 is: 168,376.14
Step by Step Solution
- Step 1: Write the proportion equation
153,586.08 : 211,975.92 = 121,996.08 : x - Step 2: Convert to fraction form
153,586.08/211,975.92 = 121,996.08/x - Step 3: Cross multiply
153,586.08x = 211,975.92 × 121,996.08 - Step 4: Simplify right side
153,586.08x = 25,860,231,294.39 - Step 5: Solve for x
x = 25,860,231,294.39/153,586.08 - Step 6: Final answer
x = 168,376.14
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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.