Finding the Fourth Proportional to 159,581.20, 239,416.08 and 69,631.78
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Solution
The fourth proportional to 159,581.20, 239,416.08 and 69,631.78 is: 104,466.99
Step by Step Solution
- Step 1: Write the proportion equation
159,581.20 : 239,416.08 = 69,631.78 : x - Step 2: Convert to fraction form
159,581.20/239,416.08 = 69,631.78/x - Step 3: Cross multiply
159,581.20x = 239,416.08 × 69,631.78 - Step 4: Simplify right side
159,581.20x = 16,670,967,811.02 - Step 5: Solve for x
x = 16,670,967,811.02/159,581.20 - Step 6: Final answer
x = 104,466.99
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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.