Finding the Fourth Proportional to 132,441.99, 182,769.03 and 72,012.67
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Solution
The fourth proportional to 132,441.99, 182,769.03 and 72,012.67 is: 99,376.99
Step by Step Solution
- Step 1: Write the proportion equation
132,441.99 : 182,769.03 = 72,012.67 : x - Step 2: Convert to fraction form
132,441.99/182,769.03 = 72,012.67/x - Step 3: Cross multiply
132,441.99x = 182,769.03 × 72,012.67 - Step 4: Simplify right side
132,441.99x = 13,161,686,103.26 - Step 5: Solve for x
x = 13,161,686,103.26/132,441.99 - Step 6: Final answer
x = 99,376.99
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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.