Finding the Fourth Proportional to 138,087.99, 207,000.77 and 88,027.56
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Solution
The fourth proportional to 138,087.99, 207,000.77 and 88,027.56 is: 131,957.69
Step by Step Solution
- Step 1: Write the proportion equation
138,087.99 : 207,000.77 = 88,027.56 : x - Step 2: Convert to fraction form
138,087.99/207,000.77 = 88,027.56/x - Step 3: Cross multiply
138,087.99x = 207,000.77 × 88,027.56 - Step 4: Simplify right side
138,087.99x = 18,221,772,261.08 - Step 5: Solve for x
x = 18,221,772,261.08/138,087.99 - Step 6: Final answer
x = 131,957.69
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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.