Finding the Fourth Proportional to 178,245.71, 245,887.08 and 120,865.62
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Solution
The fourth proportional to 178,245.71, 245,887.08 and 120,865.62 is: 166,732.18
Step by Step Solution
- Step 1: Write the proportion equation
178,245.71 : 245,887.08 = 120,865.62 : x - Step 2: Convert to fraction form
178,245.71/245,887.08 = 120,865.62/x - Step 3: Cross multiply
178,245.71x = 245,887.08 × 120,865.62 - Step 4: Simplify right side
178,245.71x = 29,719,294,374.19 - Step 5: Solve for x
x = 29,719,294,374.19/178,245.71 - Step 6: Final answer
x = 166,732.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.