Finding the Fourth Proportional to 159,423.40, 239,135.10 and 133,762.60
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Solution
The fourth proportional to 159,423.40, 239,135.10 and 133,762.60 is: 200,643.90
Step by Step Solution
- Step 1: Write the proportion equation
159,423.40 : 239,135.10 = 133,762.60 : x - Step 2: Convert to fraction form
159,423.40/239,135.10 = 133,762.60/x - Step 3: Cross multiply
159,423.40x = 239,135.10 × 133,762.60 - Step 4: Simplify right side
159,423.40x = 31,987,332,727.26 - Step 5: Solve for x
x = 31,987,332,727.26/159,423.40 - Step 6: Final answer
x = 200,643.90
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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.