Finding the Fourth Proportional to 159,728.70, 239,621.74 and 54,523.07
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Solution
The fourth proportional to 159,728.70, 239,621.74 and 54,523.07 is: 81,794.39
Step by Step Solution
- Step 1: Write the proportion equation
159,728.70 : 239,621.74 = 54,523.07 : x - Step 2: Convert to fraction form
159,728.70/239,621.74 = 54,523.07/x - Step 3: Cross multiply
159,728.70x = 239,621.74 × 54,523.07 - Step 4: Simplify right side
159,728.70x = 13,064,911,569.13 - Step 5: Solve for x
x = 13,064,911,569.13/159,728.70 - Step 6: Final answer
x = 81,794.39
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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.