Finding the Fourth Proportional to 133,246.80, 199,979.55 and 128,872.80
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Solution
The fourth proportional to 133,246.80, 199,979.55 and 128,872.80 is: 193,414.96
Step by Step Solution
- Step 1: Write the proportion equation
133,246.80 : 199,979.55 = 128,872.80 : x - Step 2: Convert to fraction form
133,246.80/199,979.55 = 128,872.80/x - Step 3: Cross multiply
133,246.80x = 199,979.55 × 128,872.80 - Step 4: Simplify right side
133,246.80x = 25,771,924,551.24 - Step 5: Solve for x
x = 25,771,924,551.24/133,246.80 - Step 6: Final answer
x = 193,414.96
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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.