Finding the Fourth Proportional to 203,986.64, 281,420.93 and 117,929.79
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Solution
The fourth proportional to 203,986.64, 281,420.93 and 117,929.79 is: 162,696.49
Step by Step Solution
- Step 1: Write the proportion equation
203,986.64 : 281,420.93 = 117,929.79 : x - Step 2: Convert to fraction form
203,986.64/281,420.93 = 117,929.79/x - Step 3: Cross multiply
203,986.64x = 281,420.93 × 117,929.79 - Step 4: Simplify right side
203,986.64x = 33,187,911,471.33 - Step 5: Solve for x
x = 33,187,911,471.33/203,986.64 - Step 6: Final answer
x = 162,696.49
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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.