Finding the Fourth Proportional to 118,793.12, 163,739.28 and 94,877.60
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Solution
The fourth proportional to 118,793.12, 163,739.28 and 94,877.60 is: 130,775.17
Step by Step Solution
- Step 1: Write the proportion equation
118,793.12 : 163,739.28 = 94,877.60 : x - Step 2: Convert to fraction form
118,793.12/163,739.28 = 94,877.60/x - Step 3: Cross multiply
118,793.12x = 163,739.28 × 94,877.60 - Step 4: Simplify right side
118,793.12x = 15,535,189,912.13 - Step 5: Solve for x
x = 15,535,189,912.13/118,793.12 - Step 6: Final answer
x = 130,775.17
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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.