Finding the Fourth Proportional to 135,076.12, 186,403.86 and 74,650.84
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Solution
The fourth proportional to 135,076.12, 186,403.86 and 74,650.84 is: 103,017.50
Step by Step Solution
- Step 1: Write the proportion equation
135,076.12 : 186,403.86 = 74,650.84 : x - Step 2: Convert to fraction form
135,076.12/186,403.86 = 74,650.84/x - Step 3: Cross multiply
135,076.12x = 186,403.86 × 74,650.84 - Step 4: Simplify right side
135,076.12x = 13,915,204,728.24 - Step 5: Solve for x
x = 13,915,204,728.24/135,076.12 - Step 6: Final answer
x = 103,017.50
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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.