Finding the Fourth Proportional to 127,807.88, 176,375.48 and 74,124.72
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Solution
The fourth proportional to 127,807.88, 176,375.48 and 74,124.72 is: 102,292.47
Step by Step Solution
- Step 1: Write the proportion equation
127,807.88 : 176,375.48 = 74,124.72 : x - Step 2: Convert to fraction form
127,807.88/176,375.48 = 74,124.72/x - Step 3: Cross multiply
127,807.88x = 176,375.48 × 74,124.72 - Step 4: Simplify right side
127,807.88x = 13,073,782,699.24 - Step 5: Solve for x
x = 13,073,782,699.24/127,807.88 - Step 6: Final answer
x = 102,292.47
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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.