Finding the Fourth Proportional to 99,841.92, 149,688.99 and 47,189.94
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Solution
The fourth proportional to 99,841.92, 149,688.99 and 47,189.94 is: 70,749.99
Step by Step Solution
- Step 1: Write the proportion equation
99,841.92 : 149,688.99 = 47,189.94 : x - Step 2: Convert to fraction form
99,841.92/149,688.99 = 47,189.94/x - Step 3: Cross multiply
99,841.92x = 149,688.99 × 47,189.94 - Step 4: Simplify right side
99,841.92x = 7,063,814,456.76 - Step 5: Solve for x
x = 7,063,814,456.76/99,841.92 - Step 6: Final answer
x = 70,749.99
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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.