Finding the Fourth Proportional to 135,379.55, 186,825.25 and 74,951.19
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Solution
The fourth proportional to 135,379.55, 186,825.25 and 74,951.19 is: 103,433.46
Step by Step Solution
- Step 1: Write the proportion equation
135,379.55 : 186,825.25 = 74,951.19 : x - Step 2: Convert to fraction form
135,379.55/186,825.25 = 74,951.19/x - Step 3: Cross multiply
135,379.55x = 186,825.25 × 74,951.19 - Step 4: Simplify right side
135,379.55x = 14,002,774,903.24 - Step 5: Solve for x
x = 14,002,774,903.24/135,379.55 - Step 6: Final answer
x = 103,433.46
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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.