Finding the Fourth Proportional to 133,172.26, 183,783.12 and 76,583.62
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Solution
The fourth proportional to 133,172.26, 183,783.12 and 76,583.62 is: 105,688.50
Step by Step Solution
- Step 1: Write the proportion equation
133,172.26 : 183,783.12 = 76,583.62 : x - Step 2: Convert to fraction form
133,172.26/183,783.12 = 76,583.62/x - Step 3: Cross multiply
133,172.26x = 183,783.12 × 76,583.62 - Step 4: Simplify right side
133,172.26x = 14,074,776,624.49 - Step 5: Solve for x
x = 14,074,776,624.49/133,172.26 - Step 6: Final answer
x = 105,688.50
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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.