Finding the Fourth Proportional to 117,990.38, 177,875.01 and 110,379.62
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Solution
The fourth proportional to 117,990.38, 177,875.01 and 110,379.62 is: 166,401.50
Step by Step Solution
- Step 1: Write the proportion equation
117,990.38 : 177,875.01 = 110,379.62 : x - Step 2: Convert to fraction form
117,990.38/177,875.01 = 110,379.62/x - Step 3: Cross multiply
117,990.38x = 177,875.01 × 110,379.62 - Step 4: Simplify right side
117,990.38x = 19,633,775,121.92 - Step 5: Solve for x
x = 19,633,775,121.92/117,990.38 - Step 6: Final answer
x = 166,401.50
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.