Finding the Fourth Proportional to 118,190.48, 163,129.14 and 75,161.66
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Solution
The fourth proportional to 118,190.48, 163,129.14 and 75,161.66 is: 103,739.80
Step by Step Solution
- Step 1: Write the proportion equation
118,190.48 : 163,129.14 = 75,161.66 : x - Step 2: Convert to fraction form
118,190.48/163,129.14 = 75,161.66/x - Step 3: Cross multiply
118,190.48x = 163,129.14 × 75,161.66 - Step 4: Simplify right side
118,190.48x = 12,261,056,141.13 - Step 5: Solve for x
x = 12,261,056,141.13/118,190.48 - Step 6: Final answer
x = 103,739.80
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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.