Finding the Fourth Proportional to 118,958.18, 178,459.14 and 96,966.68
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Solution
The fourth proportional to 118,958.18, 178,459.14 and 96,966.68 is: 145,467.85
Step by Step Solution
- Step 1: Write the proportion equation
118,958.18 : 178,459.14 = 96,966.68 : x - Step 2: Convert to fraction form
118,958.18/178,459.14 = 96,966.68/x - Step 3: Cross multiply
118,958.18x = 178,459.14 × 96,966.68 - Step 4: Simplify right side
118,958.18x = 17,304,590,321.46 - Step 5: Solve for x
x = 17,304,590,321.46/118,958.18 - Step 6: Final answer
x = 145,467.85
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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.