Finding the Fourth Proportional to 135,347.66, 186,777.09 and 74,914.77
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Solution
The fourth proportional to 135,347.66, 186,777.09 and 74,914.77 is: 103,380.90
Step by Step Solution
- Step 1: Write the proportion equation
135,347.66 : 186,777.09 = 74,914.77 : x - Step 2: Convert to fraction form
135,347.66/186,777.09 = 74,914.77/x - Step 3: Cross multiply
135,347.66x = 186,777.09 × 74,914.77 - Step 4: Simplify right side
135,347.66x = 13,992,363,439.03 - Step 5: Solve for x
x = 13,992,363,439.03/135,347.66 - Step 6: Final answer
x = 103,380.90
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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.