Finding the Fourth Proportional to 188,765.62, 260,491.32 and 107,108.74
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Solution
The fourth proportional to 188,765.62, 260,491.32 and 107,108.74 is: 147,807.09
Step by Step Solution
- Step 1: Write the proportion equation
188,765.62 : 260,491.32 = 107,108.74 : x - Step 2: Convert to fraction form
188,765.62/260,491.32 = 107,108.74/x - Step 3: Cross multiply
188,765.62x = 260,491.32 × 107,108.74 - Step 4: Simplify right side
188,765.62x = 27,900,897,066.14 - Step 5: Solve for x
x = 27,900,897,066.14/188,765.62 - Step 6: Final answer
x = 147,807.09
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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.