Finding the Fourth Proportional to 159,789.12, 239,492.94 and 74,284.44
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Solution
The fourth proportional to 159,789.12, 239,492.94 and 74,284.44 is: 111,337.99
Step by Step Solution
- Step 1: Write the proportion equation
159,789.12 : 239,492.94 = 74,284.44 : x - Step 2: Convert to fraction form
159,789.12/239,492.94 = 74,284.44/x - Step 3: Cross multiply
159,789.12x = 239,492.94 × 74,284.44 - Step 4: Simplify right side
159,789.12x = 17,790,598,931.85 - Step 5: Solve for x
x = 17,790,598,931.85/159,789.12 - Step 6: Final answer
x = 111,337.99
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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.