Finding the Fourth Proportional to 138,049.60, 207,074.40 and 88,283.20
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Solution
The fourth proportional to 138,049.60, 207,074.40 and 88,283.20 is: 132,424.80
Step by Step Solution
- Step 1: Write the proportion equation
138,049.60 : 207,074.40 = 88,283.20 : x - Step 2: Convert to fraction form
138,049.60/207,074.40 = 88,283.20/x - Step 3: Cross multiply
138,049.60x = 207,074.40 × 88,283.20 - Step 4: Simplify right side
138,049.60x = 18,281,190,670.08 - Step 5: Solve for x
x = 18,281,190,670.08/138,049.60 - Step 6: Final answer
x = 132,424.80
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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.