Finding the Fourth Proportional to 135,779.28, 187,366.94 and 82,032.54
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Solution
The fourth proportional to 135,779.28, 187,366.94 and 82,032.54 is: 113,199.79
Step by Step Solution
- Step 1: Write the proportion equation
135,779.28 : 187,366.94 = 82,032.54 : x - Step 2: Convert to fraction form
135,779.28/187,366.94 = 82,032.54/x - Step 3: Cross multiply
135,779.28x = 187,366.94 × 82,032.54 - Step 4: Simplify right side
135,779.28x = 15,370,186,000.23 - Step 5: Solve for x
x = 15,370,186,000.23/135,779.28 - Step 6: Final answer
x = 113,199.79
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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.