Finding the Fourth Proportional to 135,694.10, 187,269.36 and 75,284.18
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Solution
The fourth proportional to 135,694.10, 187,269.36 and 75,284.18 is: 103,898.55
Step by Step Solution
- Step 1: Write the proportion equation
135,694.10 : 187,269.36 = 75,284.18 : x - Step 2: Convert to fraction form
135,694.10/187,269.36 = 75,284.18/x - Step 3: Cross multiply
135,694.10x = 187,269.36 × 75,284.18 - Step 4: Simplify right side
135,694.10x = 14,098,420,206.72 - Step 5: Solve for x
x = 14,098,420,206.72/135,694.10 - Step 6: Final answer
x = 103,898.55
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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.