Finding the Fourth Proportional to 131,021.35, 180,808.36 and 73,660.92
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Solution
The fourth proportional to 131,021.35, 180,808.36 and 73,660.92 is: 101,651.45
Step by Step Solution
- Step 1: Write the proportion equation
131,021.35 : 180,808.36 = 73,660.92 : x - Step 2: Convert to fraction form
131,021.35/180,808.36 = 73,660.92/x - Step 3: Cross multiply
131,021.35x = 180,808.36 × 73,660.92 - Step 4: Simplify right side
131,021.35x = 13,318,509,772.99 - Step 5: Solve for x
x = 13,318,509,772.99/131,021.35 - Step 6: Final answer
x = 101,651.45
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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.