Finding the Fourth Proportional to 118,326.69, 163,311.86 and 69,926.56
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Solution
The fourth proportional to 118,326.69, 163,311.86 and 69,926.56 is: 96,511.08
Step by Step Solution
- Step 1: Write the proportion equation
118,326.69 : 163,311.86 = 69,926.56 : x - Step 2: Convert to fraction form
118,326.69/163,311.86 = 69,926.56/x - Step 3: Cross multiply
118,326.69x = 163,311.86 × 69,926.56 - Step 4: Simplify right side
118,326.69x = 11,419,836,343.54 - Step 5: Solve for x
x = 11,419,836,343.54/118,326.69 - Step 6: Final answer
x = 96,511.08
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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.