Finding the Fourth Proportional to 135,258.84, 186,662.70 and 74,828.46
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Solution
The fourth proportional to 135,258.84, 186,662.70 and 74,828.46 is: 103,266.32
Step by Step Solution
- Step 1: Write the proportion equation
135,258.84 : 186,662.70 = 74,828.46 : x - Step 2: Convert to fraction form
135,258.84/186,662.70 = 74,828.46/x - Step 3: Cross multiply
135,258.84x = 186,662.70 × 74,828.46 - Step 4: Simplify right side
135,258.84x = 13,967,682,380.44 - Step 5: Solve for x
x = 13,967,682,380.44/135,258.84 - Step 6: Final answer
x = 103,266.32
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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.