Finding the Fourth Proportional to 118,676.16, 178,013.79 and 48,555.45
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Solution
The fourth proportional to 118,676.16, 178,013.79 and 48,555.45 is: 72,832.99
Step by Step Solution
- Step 1: Write the proportion equation
118,676.16 : 178,013.79 = 48,555.45 : x - Step 2: Convert to fraction form
118,676.16/178,013.79 = 48,555.45/x - Step 3: Cross multiply
118,676.16x = 178,013.79 × 48,555.45 - Step 4: Simplify right side
118,676.16x = 8,643,539,679.66 - Step 5: Solve for x
x = 8,643,539,679.66/118,676.16 - Step 6: Final answer
x = 72,832.99
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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.