Finding the Fourth Proportional to 135,206.63, 186,577.80 and 74,773.74
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Solution
The fourth proportional to 135,206.63, 186,577.80 and 74,773.74 is: 103,183.70
Step by Step Solution
- Step 1: Write the proportion equation
135,206.63 : 186,577.80 = 74,773.74 : x - Step 2: Convert to fraction form
135,206.63/186,577.80 = 74,773.74/x - Step 3: Cross multiply
135,206.63x = 186,577.80 × 74,773.74 - Step 4: Simplify right side
135,206.63x = 13,951,119,906.97 - Step 5: Solve for x
x = 13,951,119,906.97/135,206.63 - Step 6: Final answer
x = 103,183.70
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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.