Finding the Fourth Proportional to 132,814.08, 183,269.88 and 78,364.80
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Solution
The fourth proportional to 132,814.08, 183,269.88 and 78,364.80 is: 108,135.43
Step by Step Solution
- Step 1: Write the proportion equation
132,814.08 : 183,269.88 = 78,364.80 : x - Step 2: Convert to fraction form
132,814.08/183,269.88 = 78,364.80/x - Step 3: Cross multiply
132,814.08x = 183,269.88 × 78,364.80 - Step 4: Simplify right side
132,814.08x = 14,361,907,492.22 - Step 5: Solve for x
x = 14,361,907,492.22/132,814.08 - Step 6: Final answer
x = 108,135.43
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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.