Finding the Fourth Proportional to 118,367.30, 163,135.64 and 89,618.08
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Solution
The fourth proportional to 118,367.30, 163,135.64 and 89,618.08 is: 123,513.02
Step by Step Solution
- Step 1: Write the proportion equation
118,367.30 : 163,135.64 = 89,618.08 : x - Step 2: Convert to fraction form
118,367.30/163,135.64 = 89,618.08/x - Step 3: Cross multiply
118,367.30x = 163,135.64 × 89,618.08 - Step 4: Simplify right side
118,367.30x = 14,619,902,836.37 - Step 5: Solve for x
x = 14,619,902,836.37/118,367.30 - Step 6: Final answer
x = 123,513.02
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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.