Finding the Fourth Proportional to 132,138.66, 182,360.34 and 74,778.02
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Solution
The fourth proportional to 132,138.66, 182,360.34 and 74,778.02 is: 103,198.75
Step by Step Solution
- Step 1: Write the proportion equation
132,138.66 : 182,360.34 = 74,778.02 : x - Step 2: Convert to fraction form
132,138.66/182,360.34 = 74,778.02/x - Step 3: Cross multiply
132,138.66x = 182,360.34 × 74,778.02 - Step 4: Simplify right side
132,138.66x = 13,636,545,151.73 - Step 5: Solve for x
x = 13,636,545,151.73/132,138.66 - Step 6: Final answer
x = 103,198.75
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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.