Finding the Fourth Proportional to 132,237.68, 182,479.32 and 78,519.92
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Solution
The fourth proportional to 132,237.68, 182,479.32 and 78,519.92 is: 108,352.34
Step by Step Solution
- Step 1: Write the proportion equation
132,237.68 : 182,479.32 = 78,519.92 : x - Step 2: Convert to fraction form
132,237.68/182,479.32 = 78,519.92/x - Step 3: Cross multiply
132,237.68x = 182,479.32 × 78,519.92 - Step 4: Simplify right side
132,237.68x = 14,328,261,608.05 - Step 5: Solve for x
x = 14,328,261,608.05/132,237.68 - Step 6: Final answer
x = 108,352.34
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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.