Finding the Fourth Proportional to 135,046.40, 186,368.64 and 84,773.12
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Solution
The fourth proportional to 135,046.40, 186,368.64 and 84,773.12 is: 116,989.80
Step by Step Solution
- Step 1: Write the proportion equation
135,046.40 : 186,368.64 = 84,773.12 : x - Step 2: Convert to fraction form
135,046.40/186,368.64 = 84,773.12/x - Step 3: Cross multiply
135,046.40x = 186,368.64 × 84,773.12 - Step 4: Simplify right side
135,046.40x = 15,799,051,082.96 - Step 5: Solve for x
x = 15,799,051,082.96/135,046.40 - Step 6: Final answer
x = 116,989.80
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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.