Finding the Fourth Proportional to 117,284.61, 161,852.11 and 63,569.05
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Solution
The fourth proportional to 117,284.61, 161,852.11 and 63,569.05 is: 87,724.94
Step by Step Solution
- Step 1: Write the proportion equation
117,284.61 : 161,852.11 = 63,569.05 : x - Step 2: Convert to fraction form
117,284.61/161,852.11 = 63,569.05/x - Step 3: Cross multiply
117,284.61x = 161,852.11 × 63,569.05 - Step 4: Simplify right side
117,284.61x = 10,288,784,873.20 - Step 5: Solve for x
x = 10,288,784,873.20/117,284.61 - Step 6: Final answer
x = 87,724.94
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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.