Finding the Fourth Proportional to 117,664.80, 176,497.20 and 115,720.80
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Solution
The fourth proportional to 117,664.80, 176,497.20 and 115,720.80 is: 173,581.20
Step by Step Solution
- Step 1: Write the proportion equation
117,664.80 : 176,497.20 = 115,720.80 : x - Step 2: Convert to fraction form
117,664.80/176,497.20 = 115,720.80/x - Step 3: Cross multiply
117,664.80x = 176,497.20 × 115,720.80 - Step 4: Simplify right side
117,664.80x = 20,424,397,181.76 - Step 5: Solve for x
x = 20,424,397,181.76/117,664.80 - Step 6: Final answer
x = 173,581.20
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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.