Finding the Fourth Proportional to 138,345.48, 207,704.80 and 88,522.84
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Solution
The fourth proportional to 138,345.48, 207,704.80 and 88,522.84 is: 132,903.65
Step by Step Solution
- Step 1: Write the proportion equation
138,345.48 : 207,704.80 = 88,522.84 : x - Step 2: Convert to fraction form
138,345.48/207,704.80 = 88,522.84/x - Step 3: Cross multiply
138,345.48x = 207,704.80 × 88,522.84 - Step 4: Simplify right side
138,345.48x = 18,386,618,777.63 - Step 5: Solve for x
x = 18,386,618,777.63/138,345.48 - Step 6: Final answer
x = 132,903.65
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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.