Finding the Fourth Proportional to 131,027.24, 180,816.60 and 74,438.62
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Solution
The fourth proportional to 131,027.24, 180,816.60 and 74,438.62 is: 102,724.73
Step by Step Solution
- Step 1: Write the proportion equation
131,027.24 : 180,816.60 = 74,438.62 : x - Step 2: Convert to fraction form
131,027.24/180,816.60 = 74,438.62/x - Step 3: Cross multiply
131,027.24x = 180,816.60 × 74,438.62 - Step 4: Simplify right side
131,027.24x = 13,459,738,177.09 - Step 5: Solve for x
x = 13,459,738,177.09/131,027.24 - Step 6: Final answer
x = 102,724.73
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1.5x scale
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.