Finding the Fourth Proportional to 159,278.48, 219,792.12 and 91,294.64
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Solution
The fourth proportional to 159,278.48, 219,792.12 and 91,294.64 is: 125,979.62
Step by Step Solution
- Step 1: Write the proportion equation
159,278.48 : 219,792.12 = 91,294.64 : x - Step 2: Convert to fraction form
159,278.48/219,792.12 = 91,294.64/x - Step 3: Cross multiply
159,278.48x = 219,792.12 × 91,294.64 - Step 4: Simplify right side
159,278.48x = 20,065,842,470.24 - Step 5: Solve for x
x = 20,065,842,470.24/159,278.48 - Step 6: Final answer
x = 125,979.62
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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.