Finding the Fourth Proportional to 138,368.44, 207,549.78 and 93,883.96
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Solution
The fourth proportional to 138,368.44, 207,549.78 and 93,883.96 is: 140,823.99
Step by Step Solution
- Step 1: Write the proportion equation
138,368.44 : 207,549.78 = 93,883.96 : x - Step 2: Convert to fraction form
138,368.44/207,549.78 = 93,883.96/x - Step 3: Cross multiply
138,368.44x = 207,549.78 × 93,883.96 - Step 4: Simplify right side
138,368.44x = 19,485,595,243.53 - Step 5: Solve for x
x = 19,485,595,243.53/138,368.44 - Step 6: Final answer
x = 140,823.99
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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.