Finding the Fourth Proportional to 102,915.70, 154,373.55 and 29,043.70
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Solution
The fourth proportional to 102,915.70, 154,373.55 and 29,043.70 is: 43,565.55
Step by Step Solution
- Step 1: Write the proportion equation
102,915.70 : 154,373.55 = 29,043.70 : x - Step 2: Convert to fraction form
102,915.70/154,373.55 = 29,043.70/x - Step 3: Cross multiply
102,915.70x = 154,373.55 × 29,043.70 - Step 4: Simplify right side
102,915.70x = 4,483,579,074.14 - Step 5: Solve for x
x = 4,483,579,074.14/102,915.70 - Step 6: Final answer
x = 43,565.55
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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.