Finding the Fourth Proportional to 137,010.96, 189,163.08 and 86,093.28
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Solution
The fourth proportional to 137,010.96, 189,163.08 and 86,093.28 is: 118,863.99
Step by Step Solution
- Step 1: Write the proportion equation
137,010.96 : 189,163.08 = 86,093.28 : x - Step 2: Convert to fraction form
137,010.96/189,163.08 = 86,093.28/x - Step 3: Cross multiply
137,010.96x = 189,163.08 × 86,093.28 - Step 4: Simplify right side
137,010.96x = 16,285,670,012.10 - Step 5: Solve for x
x = 16,285,670,012.10/137,010.96 - Step 6: Final answer
x = 118,863.99
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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.