Finding the Fourth Proportional to 135,223.18, 186,606.39 and 74,789.08
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Solution
The fourth proportional to 135,223.18, 186,606.39 and 74,789.08 is: 103,208.05
Step by Step Solution
- Step 1: Write the proportion equation
135,223.18 : 186,606.39 = 74,789.08 : x - Step 2: Convert to fraction form
135,223.18/186,606.39 = 74,789.08/x - Step 3: Cross multiply
135,223.18x = 186,606.39 × 74,789.08 - Step 4: Simplify right side
135,223.18x = 13,956,120,230.22 - Step 5: Solve for x
x = 13,956,120,230.22/135,223.18 - Step 6: Final answer
x = 103,208.05
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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.