Finding the Fourth Proportional to 136,992.26, 189,045.55 and 76,563.14
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Solution
The fourth proportional to 136,992.26, 189,045.55 and 76,563.14 is: 105,655.03
Step by Step Solution
- Step 1: Write the proportion equation
136,992.26 : 189,045.55 = 76,563.14 : x - Step 2: Convert to fraction form
136,992.26/189,045.55 = 76,563.14/x - Step 3: Cross multiply
136,992.26x = 189,045.55 × 76,563.14 - Step 4: Simplify right side
136,992.26x = 14,473,920,911.03 - Step 5: Solve for x
x = 14,473,920,911.03/136,992.26 - Step 6: Final answer
x = 105,655.03
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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.