Finding the Fourth Proportional to 135,093.42, 186,423.12 and 74,660.94
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Solution
The fourth proportional to 135,093.42, 186,423.12 and 74,660.94 is: 103,028.89
Step by Step Solution
- Step 1: Write the proportion equation
135,093.42 : 186,423.12 = 74,660.94 : x - Step 2: Convert to fraction form
135,093.42/186,423.12 = 74,660.94/x - Step 3: Cross multiply
135,093.42x = 186,423.12 × 74,660.94 - Step 4: Simplify right side
135,093.42x = 13,918,525,376.93 - Step 5: Solve for x
x = 13,918,525,376.93/135,093.42 - Step 6: Final answer
x = 103,028.89
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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.