Finding the Fourth Proportional to 124,668.14, 187,043.72 and 40,431.05
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Solution
The fourth proportional to 124,668.14, 187,043.72 and 40,431.05 is: 60,660.03
Step by Step Solution
- Step 1: Write the proportion equation
124,668.14 : 187,043.72 = 40,431.05 : x - Step 2: Convert to fraction form
124,668.14/187,043.72 = 40,431.05/x - Step 3: Cross multiply
124,668.14x = 187,043.72 × 40,431.05 - Step 4: Simplify right side
124,668.14x = 7,562,372,858.13 - Step 5: Solve for x
x = 7,562,372,858.13/124,668.14 - Step 6: Final answer
x = 60,660.03
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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.