Finding the Fourth Proportional to 159,864.81, 239,745.29 and 53,220.12
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Solution
The fourth proportional to 159,864.81, 239,745.29 and 53,220.12 is: 79,812.89
Step by Step Solution
- Step 1: Write the proportion equation
159,864.81 : 239,745.29 = 53,220.12 : x - Step 2: Convert to fraction form
159,864.81/239,745.29 = 53,220.12/x - Step 3: Cross multiply
159,864.81x = 239,745.29 × 53,220.12 - Step 4: Simplify right side
159,864.81x = 12,759,273,103.23 - Step 5: Solve for x
x = 12,759,273,103.23/159,864.81 - Step 6: Final answer
x = 79,812.89
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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.