Finding the Fourth Proportional to 145,802.88, 201,208.68 and 82,141.68
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Solution
The fourth proportional to 145,802.88, 201,208.68 and 82,141.68 is: 113,355.92
Step by Step Solution
- Step 1: Write the proportion equation
145,802.88 : 201,208.68 = 82,141.68 : x - Step 2: Convert to fraction form
145,802.88/201,208.68 = 82,141.68/x - Step 3: Cross multiply
145,802.88x = 201,208.68 × 82,141.68 - Step 4: Simplify right side
145,802.88x = 16,527,619,005.78 - Step 5: Solve for x
x = 16,527,619,005.78/145,802.88 - Step 6: Final answer
x = 113,355.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.