Finding the Fourth Proportional to 186,693.42, 257,631.38 and 106,129.74
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Solution
The fourth proportional to 186,693.42, 257,631.38 and 106,129.74 is: 146,455.89
Step by Step Solution
- Step 1: Write the proportion equation
186,693.42 : 257,631.38 = 106,129.74 : x - Step 2: Convert to fraction form
186,693.42/257,631.38 = 106,129.74/x - Step 3: Cross multiply
186,693.42x = 257,631.38 × 106,129.74 - Step 4: Simplify right side
186,693.42x = 27,342,351,375.24 - Step 5: Solve for x
x = 27,342,351,375.24/186,693.42 - Step 6: Final answer
x = 146,455.89
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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.