Finding the Fourth Proportional to 120,725.46, 181,122.74 and 58,431.06
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Solution
The fourth proportional to 120,725.46, 181,122.74 and 58,431.06 is: 87,663.31
Step by Step Solution
- Step 1: Write the proportion equation
120,725.46 : 181,122.74 = 58,431.06 : x - Step 2: Convert to fraction form
120,725.46/181,122.74 = 58,431.06/x - Step 3: Cross multiply
120,725.46x = 181,122.74 × 58,431.06 - Step 4: Simplify right side
120,725.46x = 10,583,193,688.30 - Step 5: Solve for x
x = 10,583,193,688.30/120,725.46 - Step 6: Final answer
x = 87,663.31
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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.