Finding the Fourth Proportional to 115,154.14, 158,913.06 and 66,765.48
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Solution
The fourth proportional to 115,154.14, 158,913.06 and 66,765.48 is: 92,136.56
Step by Step Solution
- Step 1: Write the proportion equation
115,154.14 : 158,913.06 = 66,765.48 : x - Step 2: Convert to fraction form
115,154.14/158,913.06 = 66,765.48/x - Step 3: Cross multiply
115,154.14x = 158,913.06 × 66,765.48 - Step 4: Simplify right side
115,154.14x = 10,609,906,729.17 - Step 5: Solve for x
x = 10,609,906,729.17/115,154.14 - Step 6: Final answer
x = 92,136.56
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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.