Finding the Fourth Proportional to 132,216.41, 182,430.14 and 78,519.48
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Solution
The fourth proportional to 132,216.41, 182,430.14 and 78,519.48 is: 108,339.95
Step by Step Solution
- Step 1: Write the proportion equation
132,216.41 : 182,430.14 = 78,519.48 : x - Step 2: Convert to fraction form
132,216.41/182,430.14 = 78,519.48/x - Step 3: Cross multiply
132,216.41x = 182,430.14 × 78,519.48 - Step 4: Simplify right side
132,216.41x = 14,324,319,336.53 - Step 5: Solve for x
x = 14,324,319,336.53/132,216.41 - Step 6: Final answer
x = 108,339.95
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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.