Finding the Fourth Proportional to 138,125.10, 207,157.68 and 49,384.74
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Solution
The fourth proportional to 138,125.10, 207,157.68 and 49,384.74 is: 74,066.39
Step by Step Solution
- Step 1: Write the proportion equation
138,125.10 : 207,157.68 = 49,384.74 : x - Step 2: Convert to fraction form
138,125.10/207,157.68 = 49,384.74/x - Step 3: Cross multiply
138,125.10x = 207,157.68 × 49,384.74 - Step 4: Simplify right side
138,125.10x = 10,230,428,165.80 - Step 5: Solve for x
x = 10,230,428,165.80/138,125.10 - Step 6: Final answer
x = 74,066.39
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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.