Finding the Fourth Proportional to 118,770.99, 163,906.32 and 65,056.02
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Solution
The fourth proportional to 118,770.99, 163,906.32 and 65,056.02 is: 89,778.60
Step by Step Solution
- Step 1: Write the proportion equation
118,770.99 : 163,906.32 = 65,056.02 : x - Step 2: Convert to fraction form
118,770.99/163,906.32 = 65,056.02/x - Step 3: Cross multiply
118,770.99x = 163,906.32 × 65,056.02 - Step 4: Simplify right side
118,770.99x = 10,663,092,832.05 - Step 5: Solve for x
x = 10,663,092,832.05/118,770.99 - Step 6: Final answer
x = 89,778.60
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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.