Finding the Fourth Proportional to 135,538.44, 187,050.24 and 75,115.68
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Solution
The fourth proportional to 135,538.44, 187,050.24 and 75,115.68 is: 103,663.62
Step by Step Solution
- Step 1: Write the proportion equation
135,538.44 : 187,050.24 = 75,115.68 : x - Step 2: Convert to fraction form
135,538.44/187,050.24 = 75,115.68/x - Step 3: Cross multiply
135,538.44x = 187,050.24 × 75,115.68 - Step 4: Simplify right side
135,538.44x = 14,050,405,971.76 - Step 5: Solve for x
x = 14,050,405,971.76/135,538.44 - Step 6: Final answer
x = 103,663.62
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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.