Finding the Fourth Proportional to 135,308.84, 186,721.61 and 74,882.03
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Solution
The fourth proportional to 135,308.84, 186,721.61 and 74,882.03 is: 103,334.66
Step by Step Solution
- Step 1: Write the proportion equation
135,308.84 : 186,721.61 = 74,882.03 : x - Step 2: Convert to fraction form
135,308.84/186,721.61 = 74,882.03/x - Step 3: Cross multiply
135,308.84x = 186,721.61 × 74,882.03 - Step 4: Simplify right side
135,308.84x = 13,982,093,294.06 - Step 5: Solve for x
x = 13,982,093,294.06/135,308.84 - Step 6: Final answer
x = 103,334.66
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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.