Finding the Fourth Proportional to 145,052.88, 217,644.58 and 78,414.99
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Solution
The fourth proportional to 145,052.88, 217,644.58 and 78,414.99 is: 117,657.76
Step by Step Solution
- Step 1: Write the proportion equation
145,052.88 : 217,644.58 = 78,414.99 : x - Step 2: Convert to fraction form
145,052.88/217,644.58 = 78,414.99/x - Step 3: Cross multiply
145,052.88x = 217,644.58 × 78,414.99 - Step 4: Simplify right side
145,052.88x = 17,066,597,564.25 - Step 5: Solve for x
x = 17,066,597,564.25/145,052.88 - Step 6: Final answer
x = 117,657.76
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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.