Finding the Fourth Proportional to 189,666.12, 284,575.68 and 84,413.10
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Solution
The fourth proportional to 189,666.12, 284,575.68 and 84,413.10 is: 126,653.70
Step by Step Solution
- Step 1: Write the proportion equation
189,666.12 : 284,575.68 = 84,413.10 : x - Step 2: Convert to fraction form
189,666.12/284,575.68 = 84,413.10/x - Step 3: Cross multiply
189,666.12x = 284,575.68 × 84,413.10 - Step 4: Simplify right side
189,666.12x = 24,021,915,333.41 - Step 5: Solve for x
x = 24,021,915,333.41/189,666.12 - Step 6: Final answer
x = 126,653.70
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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.