Finding the Fourth Proportional to 130,236.19, 179,668.94 and 76,497.01
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Solution
The fourth proportional to 130,236.19, 179,668.94 and 76,497.01 is: 105,532.39
Step by Step Solution
- Step 1: Write the proportion equation
130,236.19 : 179,668.94 = 76,497.01 : x - Step 2: Convert to fraction form
130,236.19/179,668.94 = 76,497.01/x - Step 3: Cross multiply
130,236.19x = 179,668.94 × 76,497.01 - Step 4: Simplify right side
130,236.19x = 13,744,135,868.21 - Step 5: Solve for x
x = 13,744,135,868.21/130,236.19 - Step 6: Final answer
x = 105,532.39
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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.