Finding the Fourth Proportional to 118,752.09, 178,139.85 and 34,512.99
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Solution
The fourth proportional to 118,752.09, 178,139.85 and 34,512.99 is: 51,772.89
Step by Step Solution
- Step 1: Write the proportion equation
118,752.09 : 178,139.85 = 34,512.99 : x - Step 2: Convert to fraction form
118,752.09/178,139.85 = 34,512.99/x - Step 3: Cross multiply
118,752.09x = 178,139.85 × 34,512.99 - Step 4: Simplify right side
118,752.09x = 6,148,138,861.65 - Step 5: Solve for x
x = 6,148,138,861.65/118,752.09 - Step 6: Final answer
x = 51,772.89
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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.