Finding the Fourth Proportional to 127,811.10, 176,392.44 and 76,840.44
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Solution
The fourth proportional to 127,811.10, 176,392.44 and 76,840.44 is: 106,047.70
Step by Step Solution
- Step 1: Write the proportion equation
127,811.10 : 176,392.44 = 76,840.44 : x - Step 2: Convert to fraction form
127,811.10/176,392.44 = 76,840.44/x - Step 3: Cross multiply
127,811.10x = 176,392.44 × 76,840.44 - Step 4: Simplify right side
127,811.10x = 13,554,072,702.27 - Step 5: Solve for x
x = 13,554,072,702.27/127,811.10 - Step 6: Final answer
x = 106,047.70
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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.