Finding the Fourth Proportional to 117,647.24, 162,344.66 and 66,660.98
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Solution
The fourth proportional to 117,647.24, 162,344.66 and 66,660.98 is: 91,987.31
Step by Step Solution
- Step 1: Write the proportion equation
117,647.24 : 162,344.66 = 66,660.98 : x - Step 2: Convert to fraction form
117,647.24/162,344.66 = 66,660.98/x - Step 3: Cross multiply
117,647.24x = 162,344.66 × 66,660.98 - Step 4: Simplify right side
117,647.24x = 10,822,052,988.34 - Step 5: Solve for x
x = 10,822,052,988.34/117,647.24 - Step 6: Final answer
x = 91,987.31
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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.