Finding the Fourth Proportional to 133,052.63, 183,643.47 and 87,738.80
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Solution
The fourth proportional to 133,052.63, 183,643.47 and 87,738.80 is: 121,099.88
Step by Step Solution
- Step 1: Write the proportion equation
133,052.63 : 183,643.47 = 87,738.80 : x - Step 2: Convert to fraction form
133,052.63/183,643.47 = 87,738.80/x - Step 3: Cross multiply
133,052.63x = 183,643.47 × 87,738.80 - Step 4: Simplify right side
133,052.63x = 16,112,656,767.42 - Step 5: Solve for x
x = 16,112,656,767.42/133,052.63 - Step 6: Final answer
x = 121,099.88
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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.