Finding the Fourth Proportional to 118,578.06, 177,886.53 and 48,438.54
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Solution
The fourth proportional to 118,578.06, 177,886.53 and 48,438.54 is: 72,665.75
Step by Step Solution
- Step 1: Write the proportion equation
118,578.06 : 177,886.53 = 48,438.54 : x - Step 2: Convert to fraction form
118,578.06/177,886.53 = 48,438.54/x - Step 3: Cross multiply
118,578.06x = 177,886.53 × 48,438.54 - Step 4: Simplify right side
118,578.06x = 8,616,563,798.87 - Step 5: Solve for x
x = 8,616,563,798.87/118,578.06 - Step 6: Final answer
x = 72,665.75
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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.