Finding the Fourth Proportional to 138,152.80, 207,107.70 and 93,635.20
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Solution
The fourth proportional to 138,152.80, 207,107.70 and 93,635.20 is: 140,370.45
Step by Step Solution
- Step 1: Write the proportion equation
138,152.80 : 207,107.70 = 93,635.20 : x - Step 2: Convert to fraction form
138,152.80/207,107.70 = 93,635.20/x - Step 3: Cross multiply
138,152.80x = 207,107.70 × 93,635.20 - Step 4: Simplify right side
138,152.80x = 19,392,570,911.04 - Step 5: Solve for x
x = 19,392,570,911.04/138,152.80 - Step 6: Final answer
x = 140,370.45
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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.