Finding the Fourth Proportional to 126,855.19, 190,304.40 and 43,729.75
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Solution
The fourth proportional to 126,855.19, 190,304.40 and 43,729.75 is: 65,602.08
Step by Step Solution
- Step 1: Write the proportion equation
126,855.19 : 190,304.40 = 43,729.75 : x - Step 2: Convert to fraction form
126,855.19/190,304.40 = 43,729.75/x - Step 3: Cross multiply
126,855.19x = 190,304.40 × 43,729.75 - Step 4: Simplify right side
126,855.19x = 8,321,963,835.90 - Step 5: Solve for x
x = 8,321,963,835.90/126,855.19 - Step 6: Final answer
x = 65,602.08
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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.