Finding the Fourth Proportional to 135,214.44, 186,594.75 and 74,789.52
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Solution
The fourth proportional to 135,214.44, 186,594.75 and 74,789.52 is: 103,208.89
Step by Step Solution
- Step 1: Write the proportion equation
135,214.44 : 186,594.75 = 74,789.52 : x - Step 2: Convert to fraction form
135,214.44/186,594.75 = 74,789.52/x - Step 3: Cross multiply
135,214.44x = 186,594.75 × 74,789.52 - Step 4: Simplify right side
135,214.44x = 13,955,331,787.02 - Step 5: Solve for x
x = 13,955,331,787.02/135,214.44 - Step 6: Final answer
x = 103,208.89
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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.