Finding the Fourth Proportional to 145,840.97, 201,260.67 and 78,772.97
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Solution
The fourth proportional to 145,840.97, 201,260.67 and 78,772.97 is: 108,706.77
Step by Step Solution
- Step 1: Write the proportion equation
145,840.97 : 201,260.67 = 78,772.97 : x - Step 2: Convert to fraction form
145,840.97/201,260.67 = 78,772.97/x - Step 3: Cross multiply
145,840.97x = 201,260.67 × 78,772.97 - Step 4: Simplify right side
145,840.97x = 15,853,899,713.79 - Step 5: Solve for x
x = 15,853,899,713.79/145,840.97 - Step 6: Final answer
x = 108,706.77
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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.