Finding the Fourth Proportional to 115,339.96, 159,175.02 and 86,996.44
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Solution
The fourth proportional to 115,339.96, 159,175.02 and 86,996.44 is: 120,059.52
Step by Step Solution
- Step 1: Write the proportion equation
115,339.96 : 159,175.02 = 86,996.44 : x - Step 2: Convert to fraction form
115,339.96/159,175.02 = 86,996.44/x - Step 3: Cross multiply
115,339.96x = 159,175.02 × 86,996.44 - Step 4: Simplify right side
115,339.96x = 13,847,660,076.93 - Step 5: Solve for x
x = 13,847,660,076.93/115,339.96 - Step 6: Final answer
x = 120,059.52
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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.