Finding the Fourth Proportional to 110,915.76, 166,390.92 and 66,532.08
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Solution
The fourth proportional to 110,915.76, 166,390.92 and 66,532.08 is: 99,808.49
Step by Step Solution
- Step 1: Write the proportion equation
110,915.76 : 166,390.92 = 66,532.08 : x - Step 2: Convert to fraction form
110,915.76/166,390.92 = 66,532.08/x - Step 3: Cross multiply
110,915.76x = 166,390.92 × 66,532.08 - Step 4: Simplify right side
110,915.76x = 11,070,334,000.71 - Step 5: Solve for x
x = 11,070,334,000.71/110,915.76 - Step 6: Final answer
x = 99,808.49
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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.