Finding the Fourth Proportional to 157,171.68, 216,915.36 and 88,272.44
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Solution
The fourth proportional to 157,171.68, 216,915.36 and 88,272.44 is: 121,826.32
Step by Step Solution
- Step 1: Write the proportion equation
157,171.68 : 216,915.36 = 88,272.44 : x - Step 2: Convert to fraction form
157,171.68/216,915.36 = 88,272.44/x - Step 3: Cross multiply
157,171.68x = 216,915.36 × 88,272.44 - Step 4: Simplify right side
157,171.68x = 19,147,648,100.68 - Step 5: Solve for x
x = 19,147,648,100.68/157,171.68 - Step 6: Final answer
x = 121,826.32
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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.