Finding the Fourth Proportional to 135,242.30, 186,631.00 and 74,816.30
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Solution
The fourth proportional to 135,242.30, 186,631.00 and 74,816.30 is: 103,244.62
Step by Step Solution
- Step 1: Write the proportion equation
135,242.30 : 186,631.00 = 74,816.30 : x - Step 2: Convert to fraction form
135,242.30/186,631.00 = 74,816.30/x - Step 3: Cross multiply
135,242.30x = 186,631.00 × 74,816.30 - Step 4: Simplify right side
135,242.30x = 13,963,039,765.10 - Step 5: Solve for x
x = 13,963,039,765.10/135,242.30 - Step 6: Final answer
x = 103,244.62
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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.