Finding the Fourth Proportional to 135,231.64, 186,603.31 and 74,794.03
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Solution
The fourth proportional to 135,231.64, 186,603.31 and 74,794.03 is: 103,206.72
Step by Step Solution
- Step 1: Write the proportion equation
135,231.64 : 186,603.31 = 74,794.03 : x - Step 2: Convert to fraction form
135,231.64/186,603.31 = 74,794.03/x - Step 3: Cross multiply
135,231.64x = 186,603.31 × 74,794.03 - Step 4: Simplify right side
135,231.64x = 13,956,813,193.22 - Step 5: Solve for x
x = 13,956,813,193.22/135,231.64 - Step 6: Final answer
x = 103,206.72
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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.