Finding the Fourth Proportional to 138,147.08, 207,220.62 and 49,395.20
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Solution
The fourth proportional to 138,147.08, 207,220.62 and 49,395.20 is: 74,092.81
Step by Step Solution
- Step 1: Write the proportion equation
138,147.08 : 207,220.62 = 49,395.20 : x - Step 2: Convert to fraction form
138,147.08/207,220.62 = 49,395.20/x - Step 3: Cross multiply
138,147.08x = 207,220.62 × 49,395.20 - Step 4: Simplify right side
138,147.08x = 10,235,704,968.23 - Step 5: Solve for x
x = 10,235,704,968.23/138,147.08 - Step 6: Final answer
x = 74,092.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.