Finding the Fourth Proportional to 99,661.69, 149,532.36 and 40,501.99
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Solution
The fourth proportional to 99,661.69, 149,532.36 and 40,501.99 is: 60,769.17
Step by Step Solution
- Step 1: Write the proportion equation
99,661.69 : 149,532.36 = 40,501.99 : x - Step 2: Convert to fraction form
99,661.69/149,532.36 = 40,501.99/x - Step 3: Cross multiply
99,661.69x = 149,532.36 × 40,501.99 - Step 4: Simplify right side
99,661.69x = 6,056,358,149.40 - Step 5: Solve for x
x = 6,056,358,149.40/99,661.69 - Step 6: Final answer
x = 60,769.17
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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.