Finding the Fourth Proportional to 119,138.00, 178,654.50 and 55,976.09
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Solution
The fourth proportional to 119,138.00, 178,654.50 and 55,976.09 is: 83,939.46
Step by Step Solution
- Step 1: Write the proportion equation
119,138.00 : 178,654.50 = 55,976.09 : x - Step 2: Convert to fraction form
119,138.00/178,654.50 = 55,976.09/x - Step 3: Cross multiply
119,138.00x = 178,654.50 × 55,976.09 - Step 4: Simplify right side
119,138.00x = 10,000,379,477.63 - Step 5: Solve for x
x = 10,000,379,477.63/119,138.00 - Step 6: Final answer
x = 83,939.46
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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.