Finding the Fourth Proportional to 138,397.08, 207,537.42 and 48,420.56
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Solution
The fourth proportional to 138,397.08, 207,537.42 and 48,420.56 is: 72,610.48
Step by Step Solution
- Step 1: Write the proportion equation
138,397.08 : 207,537.42 = 48,420.56 : x - Step 2: Convert to fraction form
138,397.08/207,537.42 = 48,420.56/x - Step 3: Cross multiply
138,397.08x = 207,537.42 × 48,420.56 - Step 4: Simplify right side
138,397.08x = 10,049,078,097.36 - Step 5: Solve for x
x = 10,049,078,097.36/138,397.08 - Step 6: Final answer
x = 72,610.48
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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.