Finding the Fourth Proportional to 135,890.04, 203,915.28 and 51,721.08
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Solution
The fourth proportional to 135,890.04, 203,915.28 and 51,721.08 is: 77,612.15
Step by Step Solution
- Step 1: Write the proportion equation
135,890.04 : 203,915.28 = 51,721.08 : x - Step 2: Convert to fraction form
135,890.04/203,915.28 = 51,721.08/x - Step 3: Cross multiply
135,890.04x = 203,915.28 × 51,721.08 - Step 4: Simplify right side
135,890.04x = 10,546,718,510.10 - Step 5: Solve for x
x = 10,546,718,510.10/135,890.04 - Step 6: Final answer
x = 77,612.15
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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.