Finding the Fourth Proportional to 132,478.40, 199,119.08 and 87,652.65
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Solution
The fourth proportional to 132,478.40, 199,119.08 and 87,652.65 is: 131,744.61
Step by Step Solution
- Step 1: Write the proportion equation
132,478.40 : 199,119.08 = 87,652.65 : x - Step 2: Convert to fraction form
132,478.40/199,119.08 = 87,652.65/x - Step 3: Cross multiply
132,478.40x = 199,119.08 × 87,652.65 - Step 4: Simplify right side
132,478.40x = 17,453,315,027.56 - Step 5: Solve for x
x = 17,453,315,027.56/132,478.40 - Step 6: Final answer
x = 131,744.61
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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.