Finding the Fourth Proportional to 117,935.70, 176,644.35 and 71,106.90
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Solution
The fourth proportional to 117,935.70, 176,644.35 and 71,106.90 is: 106,504.07
Step by Step Solution
- Step 1: Write the proportion equation
117,935.70 : 176,644.35 = 71,106.90 : x - Step 2: Convert to fraction form
117,935.70/176,644.35 = 71,106.90/x - Step 3: Cross multiply
117,935.70x = 176,644.35 × 71,106.90 - Step 4: Simplify right side
117,935.70x = 12,560,632,131.02 - Step 5: Solve for x
x = 12,560,632,131.02/117,935.70 - Step 6: Final answer
x = 106,504.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.