Finding the Fourth Proportional to 129,924.60, 179,245.62 and 76,190.01
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Solution
The fourth proportional to 129,924.60, 179,245.62 and 76,190.01 is: 105,112.70
Step by Step Solution
- Step 1: Write the proportion equation
129,924.60 : 179,245.62 = 76,190.01 : x - Step 2: Convert to fraction form
129,924.60/179,245.62 = 76,190.01/x - Step 3: Cross multiply
129,924.60x = 179,245.62 × 76,190.01 - Step 4: Simplify right side
129,924.60x = 13,656,725,580.26 - Step 5: Solve for x
x = 13,656,725,580.26/129,924.60 - Step 6: Final answer
x = 105,112.70
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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.