Finding the Fourth Proportional to 138,799.70, 208,201.25 and 48,845.09
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Solution
The fourth proportional to 138,799.70, 208,201.25 and 48,845.09 is: 73,268.23
Step by Step Solution
- Step 1: Write the proportion equation
138,799.70 : 208,201.25 = 48,845.09 : x - Step 2: Convert to fraction form
138,799.70/208,201.25 = 48,845.09/x - Step 3: Cross multiply
138,799.70x = 208,201.25 × 48,845.09 - Step 4: Simplify right side
138,799.70x = 10,169,607,509.13 - Step 5: Solve for x
x = 10,169,607,509.13/138,799.70 - Step 6: Final answer
x = 73,268.23
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.