Finding the Fourth Proportional to 135,318.54, 186,748.92 and 74,891.70
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Solution
The fourth proportional to 135,318.54, 186,748.92 and 74,891.70 is: 103,355.71
Step by Step Solution
- Step 1: Write the proportion equation
135,318.54 : 186,748.92 = 74,891.70 : x - Step 2: Convert to fraction form
135,318.54/186,748.92 = 74,891.70/x - Step 3: Cross multiply
135,318.54x = 186,748.92 × 74,891.70 - Step 4: Simplify right side
135,318.54x = 13,985,944,091.96 - Step 5: Solve for x
x = 13,985,944,091.96/135,318.54 - Step 6: Final answer
x = 103,355.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.