Finding the Fourth Proportional to 97,676.81, 146,515.21 and 64,389.09
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Solution
The fourth proportional to 97,676.81, 146,515.21 and 64,389.09 is: 96,583.63
Step by Step Solution
- Step 1: Write the proportion equation
97,676.81 : 146,515.21 = 64,389.09 : x - Step 2: Convert to fraction form
97,676.81/146,515.21 = 64,389.09/x - Step 3: Cross multiply
97,676.81x = 146,515.21 × 64,389.09 - Step 4: Simplify right side
97,676.81x = 9,433,981,043.06 - Step 5: Solve for x
x = 9,433,981,043.06/97,676.81 - Step 6: Final answer
x = 96,583.63
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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.