Finding the Fourth Proportional to 129,137.12, 192,374.02 and 125,220.08
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Solution
The fourth proportional to 129,137.12, 192,374.02 and 125,220.08 is: 186,538.85
Step by Step Solution
- Step 1: Write the proportion equation
129,137.12 : 192,374.02 = 125,220.08 : x - Step 2: Convert to fraction form
129,137.12/192,374.02 = 125,220.08/x - Step 3: Cross multiply
129,137.12x = 192,374.02 × 125,220.08 - Step 4: Simplify right side
129,137.12x = 24,089,090,174.32 - Step 5: Solve for x
x = 24,089,090,174.32/129,137.12 - Step 6: Final answer
x = 186,538.85
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.