Finding the Fourth Proportional to 88,997.23, 133,589.66 and 86,988.97
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Solution
The fourth proportional to 88,997.23, 133,589.66 and 86,988.97 is: 130,575.15
Step by Step Solution
- Step 1: Write the proportion equation
88,997.23 : 133,589.66 = 86,988.97 : x - Step 2: Convert to fraction form
88,997.23/133,589.66 = 86,988.97/x - Step 3: Cross multiply
88,997.23x = 133,589.66 × 86,988.97 - Step 4: Simplify right side
88,997.23x = 11,620,826,658.09 - Step 5: Solve for x
x = 11,620,826,658.09/88,997.23 - Step 6: Final answer
x = 130,575.15
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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.