Finding the Fourth Proportional to 135,214.96, 186,580.08 and 74,777.44
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Solution
The fourth proportional to 135,214.96, 186,580.08 and 74,777.44 is: 103,183.71
Step by Step Solution
- Step 1: Write the proportion equation
135,214.96 : 186,580.08 = 74,777.44 : x - Step 2: Convert to fraction form
135,214.96/186,580.08 = 74,777.44/x - Step 3: Cross multiply
135,214.96x = 186,580.08 × 74,777.44 - Step 4: Simplify right side
135,214.96x = 13,951,980,737.40 - Step 5: Solve for x
x = 13,951,980,737.40/135,214.96 - Step 6: Final answer
x = 103,183.71
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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.