Finding the Fourth Proportional to 118,765.64, 178,168.08 and 56,415.08
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Solution
The fourth proportional to 118,765.64, 178,168.08 and 56,415.08 is: 84,631.94
Step by Step Solution
- Step 1: Write the proportion equation
118,765.64 : 178,168.08 = 56,415.08 : x - Step 2: Convert to fraction form
118,765.64/178,168.08 = 56,415.08/x - Step 3: Cross multiply
118,765.64x = 178,168.08 × 56,415.08 - Step 4: Simplify right side
118,765.64x = 10,051,366,486.65 - Step 5: Solve for x
x = 10,051,366,486.65/118,765.64 - Step 6: Final answer
x = 84,631.94
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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.